Humans are animals, too.

You're just one step away from de-humanizing other people and treating them like shit. (Or others doing the same to you.)

Recognize and reduce suffering where you can. Humans aren't that special. We're just lucky to have been the first on this planet to evolve to be smart enough to build societies and stuff.

There's plenty of science fiction stories that explore this. Oh look at these puny humans. They haven't even colonized other planets in their system. And they're still fighting amongst themselves. [Insert plenty of other good reasons that we suck, here.] Clearly, they're savages, and we can exploit them as we see fit. Oh, actually they taste really good, let's make a human farm, breed and kill millions every month.

I don't think you've thought this through. You should consider the possibility that you're just rationalizing something that has become quite normal, but actually is kind of horrific if you think of the harm that it's causing.