Earlier quoted context omitted.
This isn't censorship though. It's private companies refusing to host something. Nobody has been arrested for speech and there are no laws prohibiting speech that isn't overtly and specifically threatening or otherwise violates the "fire in a crowded theater" test.
Imagine an alternate scenario. Say the major tech companies get fed up with Elizabeth Warren's calls to regulate them. Facebook removes all her groups. Cloudflare shuts down her websites. Youtube removes her videos. Google only leaves anti-Elizabeth Warren search results up, etc. Basically a major presidential candidate is completely locked out of having any pretense on the Internet whatsoever. How many people who ho…
To answer your question more specifically: if Facebook is like a TV-channel, then they should be regulated like one: channels can broadcast what they want. If facebook is more like the TV medium then it's a different story. Then you can't have it arbitrarily cut access to certain interests. BUT in that case it's also probably "too big to have that responsibility in private hands" and something should perhaps be done about that (just like some banks may be "too big to fail" and as such can't be responsible for the economic damage they cause).