In China, censorship is state-run. In America, it's been privatized.
You’re arguing for government compelled speech.
I think some of the social media platforms are making mistakes sometimes at the moment, but honestly they’re faced with very difficult choices. Ultimately they do have to make those choices, there’s no such thing as broadcast communications platforms without editorial selection of some kind.
Its a loaded term.
Censorship is the suppression of speech, public communication, or other information, on the basis that such material is considered objectionable, harmful, sensitive, or "inconvenient." Censorship can be conducted by governments, private institutions, and other controlling bodies.
Amazon, Apple, Google, Twitter, Facebook, etc. are multibillion-dollar corporations that control a colossal share of online communications.