The truth is the internet was never designed or intended to host private information. It was created for scientists by scientists to share research papers. Capitalists perverted it.
They do. Like I know for a fact that I get different content in different cities. But it's algorithmic. I don't think anyone at TikTok is saying let's manipulate specific locations. They don't need to and it would be too risky and not worth the tech debt tbh. Besides, you can do it as a third party with bots.
So like whatever replaces it will get manipulated just the same. Facebook has had this problem for over a decade now and nobody's solved it. Let's just admit that national governments are stupid.