The thing is that social media have an oversized influence that makes a calm discussion of possible solutions very hard to have. When the US recognized the implications of letting a foreign power exert so much control over their people, they tried banning TikTok, or breaking it up so their US operation would be under US control.

Facebook should also be split and its EU operation purchased by a European company, that could then spend more time implementing the other changes you mention (doom-scrolling, data protection) and less time lobbying to get all these pesky EU regulations removed.

And yes, it does feel heartbreaking to count the US as a threat to national security, but China has never threatened to annex Greenland with military force, so what would have been paranoia and extreme anti-americanism last year is now the sensible, level-headed thing to do.