These net neutrality policies ensured you can go where you want and do what you want online without your broadband provider making choices for you. They made clear your broadband provider should not have the right to block websites, slow services, or censor online content. These policies were court tested and approved. They were wildly popular. In fact, studies show that 80 percent of the public support the FCC’s net neutrality policies and opposed their repeal.
The closest we get to online censorship is obscenity laws, which one might think applies to porn, but obscenity is actually defined much more narrowly than just "content designed to arouse". Obscenity is basically stuff that even Hugh Hefner would find offensive, stuff the average adult would find deeply repulsive and abhorrent (not just a little bit, the exact language is "patently offensive"). Adult content in general (obscenity & indecency) is banned from broadcast media during daytime hours to keep kids from seeing it; subscription-based services are exempt from such rules, which presumably means that the adults who pay for the subscription are supposed to be the ones preventing kids from using it to view adult material, if such is possible. I expect this is why anything which does manage to qualify as obscene is typically very hard to get to unless you really want to see it, so nobody who might report it ever actually finds it.
It's worth mentioning that obscenity laws apply whether Net Neutrality is a thing or not, so having it will be a net reduction in the avenues through which content may be censored or policed. Now if only they'd ban ISPs from selling your data to brokers...