Implicit here is that when you say "experts", you mean people who share your terminal values and general way of thinking.
Your post makes it seem like you're having trouble stepping out of your value system to consider opposing views. Consider your quote here:
"certain topics concern taboos that are still strong even in secularized societies. To these belong anything concerning human sexuality and some religious views."
Apparently to you it's unthinkable that secular (e.g. leftist) viewpoints could also nurture irrational, destructive taboos and blind spots. But they absolutely do. Some of them are on display in your post.
You say, "most problems could be solved by experts". This is basically stating, "If I had absolute power all this could be solved easily." It's one of the impulses that leads to tyranny. This sort of thing has been tried; the world has seen many leftist technocracies, and it's been one of the most murderous political forces in human history. It's not a good line of thought.
The reality is that the solutions you imagine wouldn't actually work the way you imagine they would. Because your values aren't ultimately the best ones in any absolute sense. They're just yours, and like all humans, they're blinding you to critical aspects of the situation. This is why successful societies become successful not by concentrating power, but by spreading it. When power is spread, many values and perspectives are brought to bear, and we muddle through.
The technocratic, power concentrating, "If only I was king!" tyranny impulse needs to be rejected at every turn.
I'm not saying you shouldn't have any power; your values are valid and valuable. But you should continue to share that power.
Technocracy is tyranny is murder.
At most you can look at countries who listen to relevant experts, which very much includes the United States. Though again on a sliding scale and always secondary to maintaining power for the in groups.
Really if you look at the worst leaders of all time none of them are Technocrats. Joseph Stalin pure politician>Revolutionary , Hitler - Artist>Soldier>Politician. Pol pot failed out, built roads in Croatia then became a revolutionary. Mao Zedong > Politician/Revolutionary. Augusto Pinochet > Military. Leopold II of Belgium > Prince > King.
Karl Marx for example may have qualified and is tied to Socialism, but never gained power.
Technocracy is how to chose who runs things: "is a system of governance where decision-makers are selected on the basis of technological knowledge. Scientists, engineers, technologists, or experts in any field, would compose the governing body, instead of elected representatives. Leadership skills would be selected on the basis of specialized knowledge and performance, rather than parliamentary skills. Technocracy in that sense of the word (an entire government run as a technical or engineering problem) is mostly hypothetical." https://en.wikipedia.org/wiki/Technocracy
Critically, having someone technical in charge based on an election is not a Technocracy. It's related to Monarchy/Democracy just replace by birth or by election with by demonstrating relevant technical skill. Knowing how to build a CPU for example is not relevant to setting health policy.
PS: The closest we have come is probably a small hunter gather group lead by a group of the eldest. As they are selected based on their skill in survival. Though presumably they had far fewer regulations etc.
On top of that, pure and legitimate technocrats frequently are so deep in their fields they don't notice side effects to other fields. Politics are about making the whole system work, not about advancing one single field.
It's easy to optimise a society for a specific task (e.g. war economy). But the disbalance it brings may not be worth it in the long run. E.g. today's western societies are not self-sustainable due to huge welfare and too low birth rate. I wonder wether we'll revert to family-based societies next or invent smth new.
Of course, next step is that welfare to freeriders is cheaper for the society than freeriders turning into criminals. But even with welfare there're criminals and not all freeriders are criminally minded either.
US has a 18.57 trillion GDP, if you dedicate 10% of that into ~1,500$/month free riders that's ~1/3 of society. As long as most people want more than a subsistence level income it's simply not going to become a big deal. Sure, you in theory lose the economic output of the lazy not just the old or the infirm, but that output is simply not that significant in the first place.
Granted, we spend vastly more than that on many people. But, higher costs are a question of poor implementation not inherent costs.
The two are nowhere near synonymous.
No, I'm really thinking about experts in the technical sense, based on instrumental rationality. Think of panels of domain experts from all political sides and how they can agree on a solution. And yes, they often can agree on a solution - or at least could - if they put their own political agenda to the side for a moment.
Your post makes it seem like you're having trouble stepping out of your value system to consider opposing views.
That's an unfair and unwarrented assumption. I have no problems stepping outside of my value system. I have no troubles understanding e.g. ISIS, social darwinists, very right wing positions, libertarians, etc. and have had discussions with all of these except members of ISIS.
You say, "most problems could be solved by experts". This is basically stating, "If I had absolute power all this could be solved easily."
If there is a meaningful relation between those two statements, you certainly haven't made it explicit. The experts in question can be as conservative as you like, if that appeases your mind - as long as they are able to distinguish between their own values and expert opinion about technical issues.
The reality is that the solutions you imagine wouldn't actually work the way you imagine they would. Because your values aren't ultimately the best ones in any absolute sense.
There are two claims here. The first one is empirical, and since I haven't discussed any particular solutions we can ignore this issue. The second one concerns the role of values. My claim is that the solution of most problems in modern societies has not much to do with values, but mostly will be based on technical issues aka means-end rationality. Not all of them, there is plenty of room for different values and democratic equilibrium between those. You're ignoring my central claim and don't back up your opinion.
I would consider myself an expert on the interplay between abstract values and technical rationality, as I'm currently leading a research project on this topic, but I'm decidedly not an expert in any of the domains that are relevant for the problems mentioned in my post. So your (personal?) critique seems off-topic. If I would be king that would probably be fairly bad for my country (although perhaps not so much if I'd listen to experts).
When I'm talking about experts I'm literally talking about professors with a high reputation among their colleagues and a proven track record of 40 years of peer reviewed publication in their domain who converge in expert panels to come up with solutions to given problems in some democratically legitimized way and who are not chosen on the basis of their beliefs or political views. Not about random people on social media or electrical engineers who debunk General Relativity or climate science.
I used to think that in less drastic terms, too, but have changed my mind. Modern problems, especially their economic aspects, have become too complex for basic democracy and some strongly representational mechanisms are needed for democracy to work. Technocracy does not imply tyranny as long as proper division of power mechanisms are in place. (Whether the division of power is good enough in country X is another question and certainly debatable for some countries.)
To the contrary, this is an excellent place for this sort of discussion, and there are far too few of them here. Thanks for the excellent response.
When I'm talking about experts I'm literally talking about professors with a high reputation among their colleagues and a proven track record of 40 years of peer reviewed publication in their domain who converge in expert panels to come up with solutions to given problems
I'd guess that this is exactly the scenario that the parent was evisioning. I'd also guess that the parent doubts that these experts would be able to agree on a solution if they were actually ideologically diverse; and that if they did agree, it's unlikely that the solution would be workable and without unforeseen consequences.
since I haven't discussed any particular solutions we can ignore this issue
I think there is a legitimate fear that many "unsolved" problems remain that way not because of lack of technical knowledge but because of lack of agreement as to what a desirable solution would entail. Are there any particularly strong historical examples that you could point to where a technocratic approach has worked? Absence is not proof of absence, but it can be evidence, and a good example (future or historical) would make your argument much stronger.
And nobody needs absolute power to do that. They just need to discuss reasonably amongst themselves and decide on a course of measurable action and re-evaluate down the road to ensure the desired effect was reached.
But yeah, I suspect you don't listen well to reasonable arguments, likely because you're too busy pretending words can't be pinned to specific definitions for the purposes of productive discussion.