I completely agree but you have to start somewhere and we can't force our laws on others countries anymore than they can force their laws on us no matter how unpalatable they are or how much we disagree with them.
The option is that they work to the laws in the country they operate, they already do on some of the examples you give or they wouldn't be allowed to operate.
My concern is that our governments will see this as an opportunity to ban individuals from social media themselves based on their own watch lists compiled from their own monitoring of social media. That's not a road I want to see us go down.