I don't think it
is hipocracy. They could call it "select higher vertibrate rights, according to widespread social endearment" but that's sort of a pain to say. "Animal rights" rolls off the tongue a little better. You could get a pretty good concensous if you asked people on the street what animals
they thought were covered, and I imagine the enforcement follows that concensous; basically, it's a law that panders to that concensous.
It's about making most people feel good, not about the animals.