How can anything be censored on the blockchain, as your title tries to say?
It is not censored, and being added to a blacklist for being silent or neutral in matters where doing so betrays all charade of principles before one did held and exposes then their pitiful absence, then tough titties because that is the price you pay for supporting and condoning with silence or otherwise the most blatant network compromise in the cryptosphere. You want to be neutral to that, I'm sure it makes sense to you, but to others it doesn't and being neutral amounts to war by proxy to them and others.