I’m pretty sure the reason we even came up with this is because of a treatment to epilepsy, which the treatment is literally cutting the connection between the two segments of the brain.
Japanese hornet was an invasive species to the Americans and thus was removed, but it’s not being exterminated in mass in Japan and other areas the hornets call home. And for you to say that because an animal isn’t human is basically saying it has no soul and doesn’t feel emotions, or at least that how you come across.