I was told once that some animals are actually bred for the purpose of eating.

like: we get bacon from pigs, for example

some pigs are bred to live life on the farm and be happy, others are bred just to be eaten.

I used to think the same way about meat until I was told this

it really helped me- I think because I could see that the animal was meeting it's purpose, and like the ones bred to live on the farms wern't being killed