Tedious and stupid.
IMO, social media inherently causes anxiety, fights, hatred, envy, and mental issues and insecurity.
It's the nature of the beast. The more you share of yourself the more you can be subject to attack. The more information you reveal about yourself the more "surface area" of attack you provide someone.
People always tend to be inherently shitty online, and this is a trope that is 30+ years old. It was as true when we only had USENET, Aol and Compuserve.
Congress isn't going to be able to do shit about this. Ban online discussion entirely? I guess it could happen if Dementia Hitler thinks it's a problem.
And if you want strict age vetting of users to protect against trafficking and abuse of minors, Nikki Haley has a swell solution to that - an internet "driver's license."
All these hearings are is a political feel-good to blame successful big company owners for what is inherently the human condition.