I make this practically correct binary because in practice more than 90% of all livestock is kept in inhumane conditions.

The theoretical possibility of an ethical way to raise and slaughter livestock is irrelevant to my argument and in essence a straw man because I don't argue against a hypothetically well raised and humanely slaughtered livestock but against the fact that in reality livestock is mistreated, tortured and killed in horrible conditions in most of all cases.

If I go to the supermarket and buy meat I am all but guaranteed that the animal has suffered.

If you raise your own livestock out on open field and treat it right I don't have a problem with you. But you don't, do you?

And even if you just are a carnivore I don't have any problem with you, you can live your life how you see fit. I don't really care.

But if you go to the internet to shit on people that care about animals to feel better about the fact that you don't, I think you are a dick.
Not saying that applies to you specifically, but I have seen examples in this thread.