Social media is where Americans discuss politics. It is owned by the richest people. They determine what is hateful speech or what is fake news and delete it or bury it in search engine listings. Social media therefore is conditioned and permitted free speech warping democratic expression toward its own ends; it is not a neutral moderator or political speech or art. Social media is heavily biased and filtered by Democrats serving plutocrats.
The remedy probably is to have a public social media alongside privately owned social media. Reason dictates that privately owned Democratic expression venues will be biased and hate free expression of political opposition or even of taxing the rich more.
If the Congress wanted to ber useful it would establish a public free speech social media system that would provide every citizen a web page of their own that is secure and available for all to read in cyberspace. If the Congress wants to protect democracy and free speech it would need to establish publicly owned social media right away while there are still Americans not conditioned by the plutocracy to follow along their narratives.