In other words, shut down all businesses that rely on third party advertisement. Got it.
You are aware the advertising industry was immense before the web existed and there was no such thing as a third party ad? Network television, cable, newspapers, magazines, billboards and so on. There is literally no reason for the internet not to be like that if we want it to be. Massively profitibable for ads. Less bulls&^t surveillance. None ideally. Yeah bad for google. I am entirely happy for google to go bankrupt if they can't make money without surveillance that should be illegal and is immoral and for which they do not have informed consent. If you work there and get fired, I'm only slightly more sorry about that than I am if phillip morris employees get fired as people stop smoking.
You 100% need surveillance in your business model and we shut that down, sure, go bankrupt. Good.
Yes, this is called "the old media" and it is on the way out. Do you realize how hard it was to get advertisers on board with your publication in those days?
The whole point of profiling you as a user is to show you ads that make sense to show. There is nothing morally wrong with this. You want to use my service, I need you to tell me about yourself so that I can convince my advertisers that showing you an ad is worth something instead of nothing. You get an ad that is relevant to you, I get paid to run the service, and it all happens automatically.
If I instead had to pitch my service to advertisers to run first party ads, I would also have to convince them that my impression counts are accurate and that my target demographic is what I claim it is. How am I supposed to do that without an impartial third party? Am I supposed to survey my users, taking their precious time?
Of course this is all possible, but only for big companies. It's not CNN or Fox or even Google that is going to go bankrupt. They can adapt their model. For the upstarts, you'd be nipping them in the bud. The big guys will thank you for that.
If browsers ban JS in ads, HTML based ads will rise in value.
How are you going to detect what third-party JS is an ad? That's basically the job of an ad blocker. Do you expect Google to ship an ad blocker that blocks ads of its competitors? That'll be a great antitrust lawsuit.