I happen to have what you call 'basic respect' for living things, I find a dude snapping the neck of a rabbit 'icky'.
I see that as me having grown up in a city and never having to snap necks to make a meal that evening. If I end up living on a farm, I'm sure I'll quickly get used to snapping necks of chickens and rabbits no problem.
See, your whole argument boils down to 'why aren't you more like me? Isn't being like me better than being like you?'
That's one point of view, I'd much prefer other people be more like me as well, so that I can get along with them better etc. I just recognize that that's simply a self-serving preference.