Interesting that you think having any drawbacks whatsoever to not eating meat is sufficient to justify eating it, I would've thought the drawbacks had to at least outweigh the suffering involved.
So provided we offer decent conditions for their lived experience it can be a fair trade, since they wouldn't even exist in the first place. Who are you to judge if the cow thinks it's worth it or not? I mean the cow could very well go "moo yeah" if you present the deal "couple of years of grazing running around then get turned into a hamburger? Or no existence at all, what say you?"