Why is that worse than the planetary-level ecological disaster that's currently being exacerbated by everyone in the developed world eating a ridiculous amount of meat?

My species also "evolved" to constantly fight wars against everyone not in my family; I'd say it's really good news that we were able to develop moral and conceptual systems to overwhelm our evolutionary tendencies.

So you live a hunter gatherer lifestyle, mostly outdoors, and definitely don't sit in a chair out of the sun for hours at a time? Since we're talking about evolution.

I'm not, I evolved as an omnivore. I also generally don't like meat though because I'm weird.