I would rather hope it kills the big platforms and forces a reverting to smaller platforms and message boards. Social media has become a scourge on humanity.
Should the government be in the business of regulating social media to death because it is a scourge on humanity?
I am generally in favor of big government, but this seems too big even for me. (And if I were to be in favor of it, I would rather the government straightforwardly legislate what we don't like about social media or even ban it instead of burying it under crushing legal liability - which runs the risk that some even-more-scourgey platform will avoid the liability. For instance, the most vapid parts of Instagram would survive because there are no opinions or ideas there, just photos.)