Right, there is a difference between moral and legal rights, legal often infringes on what should be our rights (say bodily autonomy, or freedom of speech, freedom to defend your life, etc) depending on your locality, and the government in "X" does not suddenly become the arbiter of right and wrong just because they have the monopoly on force to make you bend to their will. In short, just because China kills or jails political dissidents doesn't mean being a political dissident is "wrong," and they do have a natural right to freely express themselves, but the government infringes upon that right.

Similarly, slavery wherever it exists legal or not is an infringement on the rights of the enslaved, full stop, and nobody has the "right" to own another, "rights" do not come from documents like the Bill of Rights, the Bill of Rights simply enumerates some of the rights we're afforded by virtue of being "our own humans" with our own agency, so to speak.

I'm not here to argue veganism, humans and animals are different creatures, call me speciesist all you want idgaf. When animals all turn vegan of their own accord I'll consider it, until then I'll continue to do as they do.