"Where's the limiting principle here?"

How about "If the content isn't illegal, then the government shouldn't pressure private companies to censor/filter/ban ideas/speech"?

And yes, this should apply to everything from criticizing vaccines, denying election results, being woke, being not woke, or making fun of the President on a talk show.

Not saying every platform needs to become like 4chan, but if one wants to be, the feds shouldn't interfere.