The problem is that you're assuming that governments will never get involved - many people are only able to express dissenting opinions, and organise movements, because regimes and oppressive groups can't identify them. While most social media companies try not to give over personal info to governments, there's always that possibility.

While ID verification would hold people accountable, and enable crime detection, it would also strip the protections of the most vulnerable and persecuted.

The other thing is that similar proposals in the UK suggested that parents would have to provide ID for under-18s - this is dangerous for many young people, who might keep their accounts private from parents/guardians in order to use social media to get support while living in abusive situations, or to explore Queer IDs in a non-judgemental environment.

I honestly understand the appeal of ID-verified users, but it's hard to support it when it would put the most vulnerable people in potential danger. (And yes, I'm aware of the abuse present on socials and how ID verification would prevent it - I'm a Queer woman on the Internet, I have, in fact, seen some sh**.)

You have some good points - social media has amplified the negative extremes of human behaviour, and in many cases rewarded it - but the solutions may create problems all of their own.