Yes they can
https://en.wikipedia.org/wiki/Marsh_v._Alabama
If the private corporation acts as a state actor, meaning they are acting like a government. Otherwise the government would just “encourage” private corps to censor what they don’t like.
Granted, this is exactly what Facebook is doing, but no one has smacked them down on it yet.
Facebook is a de facto government organization. The Biden administration has admitted this. Even Mark Zuckerberg himself admitted working with the Biden Administration to censor and suppress information damaging to the Administration. So a 1st administration violation would apply to Candace’s case.
They can if the government was paying FB to censor people/posts: https://justthenews.com/government/federal-agencies/biden-administration-rewarded-private-entities-got-2020-election
No, but they can do it, in conjunction with the government.
Just gives the feds plausible deniability.
They can when the government is directing them what to allow and not allow as speech.