IMO: although morality isn't something inherent in the universe per se, it can be derived from rationality or human social structures.

And on that basis, rape and slavery (and murder and genocide and torture and...) are objectively wrong.

I feel like these actions aren’t necessary nor natural. I think that the only other species that rapes is dolphins. And I don’t think that any other species has slaves; sure there’s a hierarchy but everyone does their part the way nature designs. Rape and slavery aren’t biologically natural, very few other species have those inclinations so I’m wanting to call it a fluke. The product of free will and the ability of higher thinking used wrong.

Murder isn’t objectively wrong because there are cases of self defense. There is literally no GOOD reason to rape or enslave someone. At least that’s the way I see it.

If not objectively wrong then they are at least not natural as far as I am aware. Feel free to correct me if I’m wrong.

Morality is not even subjective to begin with.

People may have different morals, but there are still some things that are wrong period. No question about it, it’s fucked up to take advantage of another person’s body like that. End of story.