Comment by mikkupikku

Same ethical basis I have for enslaving a dog or eating a pig. There's no problem here within my system of values, I don't give other humans respect because they're smart, I give them respect because they're human. I also respect dogs, but not in a way that compels me to grant them freedom. And the respect I have for pigs is different than dogs, but not nonexistent (and in neither of these cases is my respect derived from their intelligence, which isn't negligible.)