The problem is with the naive (at best) cheerleaders who say that sex is great, there should be no boundaries, no limits, anybody objecting to anything another person wants to do is being a prude and preventing them from being their authentic self, which is literal violence etc etc. All of which makes life for the predators incredibly easy and will attract them like wasps to a jampot.
It also creates predators, I believe.
It's become unfashionable to ay it - largely due to the whole "born this way" thing - but human sexuality is highly culturally influenced. Many many people have sexual thoughts or desires, maybe particularly during adolescence, that are not really morally or socially acceptable. This is why we have to build social boundaries around these things. We can see from history that it's not just naturally obvious, many societies have condoned things as normal we would say are immoral.
People including teens do learn to suppress and work around certain bad thoughts, and insofar as they manage they avoid reinforcing those desires and behaviours. Yes, some people do not manage even knowing that it is wrong, but if they don't try, then it will inevitably get worse. When we indulge thoughts with a sexual payoff, it becomes harder not to think about those things.
When people are told that sexual desire is always ok, or all sexual thoughts are ok because they are just thoughts, or love is love, or they need to be "authentically" live out their true selves, that sex is fun leisure and not that big a deal - that affects how they behave, the kinds of things they allow themselves to think about, the thrills they seek out.
With the stuff that people, including developing teens, have been taught about this, since at least the 1980s, I am not at all surprised if there is a huge increase in paraphilias.
And It makes sense that people who believe all that stuff and want to live it out will include many people who indulge in dodgy behaviour.