I don't think you're disordered because you feel a kindred spirit toward other species, and given the way the world is today, it's not too surprising that you despise humans as a species (if I understand you correctly), either. We are an aggressive, acquisitive, territorial, cruel lot at base.

If you can keep your feelings for people--in particular--positive, despite your negative feelings about humankind--in general--you're probably okay.

But there's nothing wrong with wanting to explore your feelings further--either on your own, or in therapy--if you want to.