We can all read and likely have many experiences indicating that animals, in many circumstances, actually behave much like humans do. And for all the arguments that animals do x or y because they’re responding to stimulus, well... So are we.
It really clicked a while back and since then, I just can’t go back. I no longer feel sufficiently different from a cow or a pig in order to feel comfortable eating them.
I certainly don’t judge others for disagreeing either though. Just as I don’t judge wolves for eating caribou or fish for eating fish. Humans operate under the illusion that they have free or stronger will than these animals, but I’m not sure that’s true anymore. I’m not even clear on why I had this revelation or why it matters enough to me to act on it! It’s all very absurd in a way.