Is most porn actually disgusting and extreme? Most of what you would stumble upon on the "tube" is pretty tame, so unless you're specifically looking for extrem

Is most porn actually disgusting and extreme? Most of what you would stumble upon on the "tube" is pretty tame, so unless you're specifically looking for extreme/disgusting you're not likely to find something "extreme". Have there even been evidence on how porn actually hurts people at a large scale? I'd love to see that evidence.