Personally I just have a list of animals that I have enough respect for to never consider eating them. If I'm convinced enough, I'll add new animals to the list.
- dog/wolf ๐บ
- hourse ๐ด
- whale/dolphin ๐
- hominidae ๐ฆ It's not very hard because I wasn't planning on eating any of these guys in the first place, but I can see myself giving up beef as my respect for cows grows.
You might be right but that's not a simple casting change