they don't realize that the second these huge tech companies are forced to allow everyone no matter what they do and 230 being "abolished" causes them financial harm....their armies of highly paid lawyers will pounce on the users instantly.
You can bet 120% the use of the web sites from that point forward will become "contracted" directly at and individual basis. No more simple click through of generic agreements and terms of service.
They will have to give up all their personal information just to be allowed on the site yet alone "post" anything. Will make suing them very easy.
Forget winning or losing, just the cost of defending yourself from a blank judgement on you will bankrupt a lot of people.
They never fully follow through the impact of their desires.