I'm a gay woman who is into BDSM. I like being submissive (though don't mind domming my wife). I like restraints and impact play. I like to feel degraded.
There's nothing wrong with me. Irl, I'm a MH nurse. I'm known for being compassionate and a good listener. I come across a bit eccentric (neurodiverse) and have very nerdy interests. I'm pretty much known as a loveable dork. My bedroom activities don't say anything about me as a person. I'm a little awkward (again due to neurodivergence), but extraverted. I'm not afraid to lay a boundary, or stick up for myself or others. I'm also a very outspoken and opinionated feminist.
There is a fine line between pleasure and pain. Pain can release endorphins, which is why it feels good. Just how some people feel good after an intense work out. BDSM has been a thing for as long as sex has been a thing. I don't know why it's so hard to accept that people just have different sexual preferences. Sensory play (like restraints and blindfolds) and giving your full trust to someone can be exciting and highly erotic with the right person, as can letting someone else take complete control be. As for the more niche kinks with pee etc, this is often about the humiliation aspect/people playing with the taboo. Not my cup of tea, but it isn't harming anyone.
Having said that, if I was straight, I'd feel different. I wouldn't want to submit to a man as it's a different dynamic (tbh I think I'd more love humiliating and domming men, lmao). There are a fair amount of dodgy men on the kink scene, and you have to be careful. There are definitely men who use it as an excuse to abuse, or they've seen too much porn. Equally though, I met a lot of nice male friends who just happened to naturally enjoy dominating. There are plenty of male subs too!
You are confusing kink with abuse. Me letting my wife use a cane on me isn't abuse. Because I asked for it and like it 🤷 informed consent is key in kink, and anyone not following informed consent will be rapidly removed from kink circles.
I do think there is probably a psychological element that drives our sexual preferences, whether you are kinky or vanilla. But honestly, if we all say and thought about why we like what we like and why we act the way we do in the bedroom, no one would be having sex. Unless you have other issues and use sex as self destructive behaviour or whatever, it really doesn't need psychoanalysing.