Master Of Unpopular Opinions's feed

I have quite a bit of a problem here.
I simply don't get it. The more I read them, the less I understand. These Dom sub... Verse?

I already had a hard time with omegaverse and honestly, I have turn off my brain completely while putting all my focus on one thing that I find nice when I read one, but in this dom sub thing, it just doesn't work.

First, are the authors trying to... Like, legitimate and randomise BDSM? And make it credible on a biological level?
In omegaverses, they still use biological functions and mix them between sex and, uh... Cat. Biting the female neck is a cat thing, to prevent her from running away because male cats have thorns on their penises. The whole heat/rut is also a cat thing, the nest thing as well (for pregnant females) and so on.
It's honestly pure bullshit but at least we can trace the origins, the process behind the creation of this.... Thing.
I guess the first creator of omegaverse had a weird zoophilic fetish?

But what about this dom sub stuff?
How did they come to make it a subgender and stick biological reactions in it?

Thus, I don't understand the biology of this.
They say there are Dom's

-omg my autocorrect is not letting me write it!-

subs, switches and normals. Which mean it is not normal, right?
So what about these "sub levels" and why are they always seeing a generalist doctor instead of a psychiatrist? Where does it come from, what kind of... Hormones? Are at work here?
Or is it some kind of illness?

Is it a way to romanticise bondage and domination plays?
But ... Why?!?


I seriously cannot wrap my head around it.