What big tech is doing so clearly violates the principles of free speech that I can't see an argument for it. It goes well beyond people expressing unpopular opinions, to the point of interfering with markets and elections.

Twitter has been interfering in elections by selectively deplatforming candidates that they don't like. It is so obvious that the biggest threat to the integrity of American elections is big tech. I can't believe that there are some that think that Russia buying a few thousand dollars worth of Facebook ads is a bigger threat than Google.