Filters aren't going to stop the State from putting CSAM into a block and using it as a pretext to come after node operators. It's not going to stop any of the other pretexts they could use either.
Fundamentally either bitcoin or the state as we know it can survive, not both. There will be a showdown at some point, and node operators could well end up lined up against the wall and shot (CSAM or not).
https://youtu.be/X_xgmVLyB94