Everyone has to make trade offs. You want to live in the cultural capital of the world or place where the average income is over six figures, but everyone else does as well. There's limited space in these cities, so you need to bid top dollar if you want to keep a place for yourself.
Sorry man, I just don't buy it. Expensive housing is a solveable problem. Six figures isn't that much when you're still spending half your paycheck on rent.
As for the cultural capital of the world? New York used to have a thriving art scene when it was cheap to live in. Now it just has an expensive art scene.
I agree that housing policy is broken and has a lot of room for improvement. There's no way around supply and demand though. At best you'll have a situation like Singapore where housing is expensive, but still attainable.
No, just rent and share like a college student your whole life. That makes sense.