But to label all porn as not good is not correct either in my opinion.
If, as an example, you find a porn account of a consentual couple who uploads videos on their own terms - why would that be bad?
You might end up with devices blocking all photos of a woman topless, or naked men, even art. Does Michelangelo's David statue get his privates covered or blocked? Or like in China where they increasing block things like picture/videos of women eating bananas as that is taken as sexual (and to be fair some steamers were knowingly doing as so).
Obviously there is reasonable ground in these discussions, but when it comes to censorship the best overall position is government should stay out as much as possible. History shows human nature, or the people attracted to powerful positions, seems to not play well in these spaces over time.
There used to be clear lines drawn for porn penetration, oral copulation, etc... but those lines have been quite blurred. Now anything lewd could be porn and just about anything could be lewd in the eyes of the beholder. There's some case law that tries to put bullet-point requirements on this but is still somewhat subjective even when stare decisis is utilized. A considerable amount of artistic content on DeviantArt could be considered lewd by current US standards.
Overall I agree with you. The government should stay out of it. The tech industry should also stay out of it. Just add a header for URL's that may contain user-generated content and let the clients decide what actions to take or not take on that header.
"Principal fired after Florida students shown Michelangelo statue"
Imagine all junk food and sugary soda was produced with sustainable farming and renewable energy. It could still be the case that it leads to worse health outcomes for the population, which seems like grounds for regulation to me.
I don't really have a position on this, but it seems easy to imagine how someone could.
I don't see how that would be grounds for regulation, though. Grounds for education, perhaps.
Just say the more general thing in the first place so people don't have to bother trying to argue the finer points of the specific case.