You've got some good points there, but it feels a little naive of nuance in parts.

Like, if these are natural rights, presumably this still counted before humans banded together to form the first societies. Before, even, we were small roving migratory groups that only just managed to climb out of the trees. humans, as they were, are basically animals at that point, right? I mean, we're still animals, but you know what I mean. So we still have those rights? What makes us different than the other animals (or even other ape descendants) that we see as food? As a species, we were evolved to eat meat, which requires killing something else that presumably has these same rights that we have to violate to enforce our own right to life. Or did natural rights come later, when we were "better" and "more advanced" than the animals we hunted? Does that mean we get these rights when we reach a certain point in self-awareness?

It's tough to argue with the base arguments you present, and I don't disagree with them... but they can be argued against. Like your slavery argument. It goes against these natural rights that we have always had, yet we started taking our first steps toward stopping it, like, 600 years ago? Slavery predates writing. As far as we know, mankind was enslaving other people as far as we can track, and definitely hundreds, if not thousands of years before. So were they not aware of these natural rights or just didn't care?

It sounds like you're saying these are natural rights that everyone has because it feels right to you dues to the society you grew up in that appreciated these rights. They have to come from somewhere to be natural but only really count for some living things and not others.

Personally, I don't believe in natural rights. We're animals that grew opposable thumbs and learned to make tools. Human rights come about only because we live together in societies. In a way that sounds contradictory, we formed groups and gained rights among those other humans, and in the same instant traded some of those away for that group to function. Rights have to come from somewhere. Without groups agreeing on what those rights are, then the decider of rights is whoever is strongest. Might makes right started to decline only because we got into groups large enough to defend against outside forces, and even then it was only within the group in which those rights existed. Rights themselves are part of the social contract we all participate in when we exist in society and universal human rights is a relatively recent advancement, and we definitely haven't come to a consensus as to what they all definitely are. But if society breaks down, those rights definitely disappear overnight. But I've always been the kind of person who needs reasons to believe a thing and have sound reasons to believe it.

I'm with you on right to life, and bodily autonomy are things that all humans should have. I think we just differ in their origin and universality.