Colour me ignorant or skeptical, but there's a lot of "the world is going to end" and "no it isn't" in here that isn't supported by cited fact. Having read this at length, I am left to form my own opinions as there appears to be a lot of bias here.
If one researches feedlots and the forced introduction of "nutrients" and "supplements", it might explain why our kids are bigger this generation, but they also seem to have higher rates of problems, like asthma for example.
Greed and competition are certain to be the prime motivators. Silently however, our gov'ts have agreed that a fed nation is a happy nation, no matter what the side issues may be. As a nation, we are supporting this. We all stop at the arches, the colonels, or simply choose to purchase less expensive, mass produced meats and vegetables. Hint. The first number on vegetables, if a 3, is to be stayed clear of.
How on earth could pork or chicken raised in prisons with no windows, be healthy?
That said, getting back on topic, mass production (not accelerated or treated production) of foods is necessary. Food prices are escalating as demand is out weighing supply. Some nations have people working three jobs just so they can afford to eat. Not eating meat, while practical in a micro theory, isn't a solution, and it simply won't happen anyway.
Fish farms are a great idea, however right now, it's not being done in a manner that makes me comfortable enough to buy it. If it's not from the wild, I won't buy it.