And if they can cater to that fetish totally fine, why aren’t my fetishes allowed??

As already stated, it isn’t necessarily a fetish, but you bring up a good point - why YouTube is enforcing some puritanical Christo-fundamentalist ethical standard is kind of ridiculous. As a European, where we have a less puritanical view of sex I’d like to be given the choice. It’s not complicated to keep sexual content behind a tickbox choice like on Twitter or Reddit, especially not when, you know, Google Play is their only real gatekeeper here and guess who owns them? They also already use credit cards and the like for “age verification”, so any excuse they have is vanishing more and more.