yes, let's blame the ubiquitous machine for millions of American & UK idiots sharing easily debunked propaganda that lead to both Brexit and The Orange One. it's so much easier to blame the big corporate overlords than have any personal responsibility.
no one forces you to sign in. no one forces you to share pics of your lunch meat. no one is stopping you from creating an alternative, i mean, aside from the fact you can't afford the servers because without ads you have no way to pay for them.
I hardly think the government - any government - can responsibly regulate a free market of information without imposing limits on free speech and innovation.