> Anyone who brings up kids is trying to manipulate you into giving up your freedom

These are NGOs not parents. And "child safety" is often a euphemism. The point is it's hard to argue against child safety. For example, if opaque NGOs demand deanonymization to stop CSAM, I am assuming most people would not want to seem like they are in favor of CSAM. So you need an organized effort to argue in favor of privacy and even then anyone who does it can easily be smeared as a CSAM user. So child safety can backdoor something else.