> What if the police abuse their power

Then people are free to speak out against it. But if they weren't, that question would indeed be unanswerable.

You're implying that the "censors" would censor without limits, including complaints about them.

Yes that seems a reasonable concern. Indeed it's hard to censor something without censoring complaints about censoring that thing, unless these complaints are entirely on free speech grounds. But if we already don't believe in free speech anymore, then we would have to interpret a complaint about censoring something as an endorsement of that thing, and hence censor the complaint as well.

This is all hypothetical though since there aren't censors

So in the end you agree that there shouldn't be any as well?