In the past, most USENET was small enough that people maintained their own individual blocklists of bad actors and ignored them. Today, we crowdsource a personal blocklist with EasyList and other lists that users opt into.
The only centralized or automated moderation any media needs is to stop bots and spam. If you went to opentube and you had the option to view only "family friendly" videos then even sensitive people could use the site without being offended.
I’m an adult and can navigate away. The world is a tough place. Pretending that bad stuff doesn’t happen is akin to putting your head in the sand.
Should it be front and center? Probably not. But it shouldn’t be “banned”.
It’s a slippery slope, moderation can and will be abused. Just look at the reddit zealots.