Earlier quoted context omitted.
nowhere near to China. In US almost anything could be discussed - usually only unlawful things are censored by government. Private entities might have their own policies, but government censorship is fairly small.
In the US, yes, by the law, in principle. In practice, you will have loss of clients, of investors, of opportunities (banned from Play Store, etc). In Europe, on top of that, you will get fines, loss of freedom, etc.
What are you talking about?