I eat meat and I fucking love it. At the same time, I think humans in general rely too much on technology and just the overall advancement of civilization to get what they want.
I would find it very hard to argue in this thread if humans went out, like cavemen did fifty years ago (give or take a few years) and came home after hunting the animal themselves. Blood on your hands and face as a symbol of your work and barbarianism (but you need food to survive, so..). If you could live with yourself after that (though this isn't a question of morality and God and shit) then I think eating meat is perfectly fine. For that individual and its family.
If we're talking "round 'em up, feed 'em, kill 'em," then I think there's more of an argument there. If you're too busy to go hunt for the cow you want to eat because you're CEO and work 16 hour work days, then you don't eat meat and you pay the premium for buying fresh produce. Slowly, that means those with shitty jobs, or no jobs, get all the time in the world to hunt and, therefore, eat the most meat. But then wouldn't that mean the scum of society ate meat while the "well-off" lived longer by eating fruits and vegetables?
Again, I love meat. I can give up milk, or animal milk, at least. I do cook a good bit, though, so what would we substitute for butter, cream, and milk when we cook? Yes. It's a serious concern of mine. Soy milk couldn't possibly be good.