@johnnynull I can't recognize any notable market pressures within the meat industry that would take care of the feeding issues. What one sees more and more however is unnaturally quick growth due to selective breeding with economical profits as the driving force.
Chickens are the extreme example in this case, they get full-grown and slaughtered within months from burth - compared to their ordinary lifespan of several years. Cows, as our previous examples relate to, have to keep giving birth (to children which are quickly taken away, beefed up and slaughtered) just to keep the hormones so they can produce milk.

That doesn't sound like a market pushing to cattle brought up on grass, rain water and sunshine. :)

Also I'm not sure what you mean by people dying from a (varied, proper) !vegan diet, but then again I have never said everyone should just stop eating meat produce. Only that the world can't keep it up as it is now and that the changes required are pretty severe.