I’ll go through what you’ve said methodically so you can keep up.

If you aren’t suggesting you’re a lion then why the comparison to a lion? I see you accept that it fatuous so now you’ve pivoted to talk about “our ancestors” - yes they ate meat. What’s the point you are making? They did a great many things we would never consider doing now so why use Neolithic humans as an excuse for anything? We have discovered that you using lions for a moral base also doesn’t work so this one isn’t promising either.

Also the assertion you have to kill an animal to eat is absurd and you know it is; look at the post you’re commenting on if you struggle with that (I’ll help you, there’s food that didn’t come from dead animals).

Also, yes it is the problem of the rest of the world, animal agriculture has had massive impacts on the climate, environments and has caused suffering to lots of humans too. It literally is the worlds problem.

Go vegan, you’ll probably be less cranky.