The government unequivocally has the right and obligation to enforce federal law. To what extent and by which mechanisms they should do this is a different question altogether but this issue is hardly about 'dictating what other people can do with their own lives in their homes' as was the case with other laws like anti-LGBT.
That's literally the point of law. One person writes the law, and it dictates what others can and can't do with their lives. Are you an anarchist? Or are you just not thinking clearly about what you are saying?
If thing X demonstrably causes major harm to individuals, then it is often in the purview of government to restrict adults from exposing minors to X.
And, yes, you might want to take a look at your moral code to see if it's a bit broken. I think mine is operating fine!
It turns out, a mother's nipple has a far different effect on an infant than a young adult female nipple does on a teenage boy. If this is difficult for you to grasp, then you should consider stepping away from this conversation, as there is clearly nuance here that the average person can easily understand but that you can't.
> What's wrong with these people?
What's wrong with you?
> Even public nudity laws differ from city to city (e.g. in California), so clearly, people aren't aligned at all on this subject (I'm emphasizing the arbitrary nature here).
I don't think "arbitrary" means what you think it means. Just because people don't all agree on the definition of something doesn't make one person's definition arbitrary.
> Forbid and censor the things you're afraid of educating on.
"Education" has nothing to do with it. Pornography has been proven to be devastatingly harmful for many, many people. There is no world in which you can be morally consistent, for instance, in supporting an age minimum for alcohol consumption but not for pornography consumption.
> On a closing note, I do recommend supporting organizations like https://www.aanr.com/ who also provide legal help to citizens in states that'd rather have you wear a burka than show a nipple.
If your moral code drives you to make the world a better place by liberating people from restrictions on viewing pornography, then I contend that your moral code is corrupt or severely misguided.