What we are talking about is something that already happened: the DAO rollback. So, it’s impossible? I’m really not surprised this level of ignorance exists in crypto fandom.
If the DAO rollback had been a successful attempt at censorship (e.g. 100% collusion of miners), then there would have not been a chain-split, but there was one, and as a result of that, both ETC and ETH exist today.
Now, if you're suggesting one-off cases like this are the counter-argument for the censorship argument, I'll bring you the bad news: this has never happened on chains that are not shitcoins, e.g. bitcoin.
(And what I mean with that is that bitcoin has never hard-forked to attempt a censorship attack like it happened with the ETH community. BTC has only hard-forked in emergency situations to fix bugs.)
