I'm guessing he was trying to make some Nazi connection, which definitely fell through. Probably something along the lines, that if we start euthanizing all the unneeded animals, why not the people?
However, PETA's goal of eliminating the practice of animals raised for their meat, all hunting, etc, will backfire on them. Farmers aren't going to pay to keep the animals alive, they aren't going to make any money off them. They are going to kill them off, or let them loose. If they let them loose, the same thing is going to happen to them as the hunted animals. Uncontrolled, animals normally hunted, are going to overpopulate, and bring them selves to a much more horrible death. Starvation. That, and the number of car-animal collisions is going to go up. A lot of the time, the collision results in an injured animal, not a dead one. It will go off, and die from something like exposure, or starvation from its inability to get food or maintain its body heat. In short, the animals are going to start having much more horrible deaths, that the millisecond, or at most seconds of pain they are in when they are hit with that bullet.
I can agree with them that starvation is a natural death, and that a bullet isn't. However, I cannot follow their logic that somehow, a bullet is inhumane, and starvation is humane