anyone who wanted to eat only humanely treated animals would have a lot of work cut out for them.

Absolutely, they would, the food system in North America is pretty hellish for animals.

Do you eat meat?

I was a strict vegetarian for 18 years, I didn't and don't think eating meat was/is always wrong but as you note trying to eat humanely was just too much trouble, I've recently started eating some seafood in an effort to see if a diet richer in protein helps me train to run.