[thesausageking]

Imagine in 1980, saying: Philip Morris will be stopped when people decide to stop smoking. All the information about the cancer their products cause is quite public and people still chose to use the product.

While the US didn't outlaw cigarettes, it did take a number of steps to reduce the usage because of the externalities they cause. I don't see any reason why we shouldn't treat Facebook the same way. Add taxes that go towards funding programs to warn of the dangers of anti-vax and other extremist content, keep kids under 13 off of their products, etc.