* Study authors are tied to dairy farming and, animal and poultry farming.
* America is never going to be a vegan, or even vegetarian nation. There are too many jobs tied up in fattening cattle and pigs to go that route.
* Americans manliness is tied up into how much they kill, it's not going to happen.
* There are some horrific oversights such as the fact that a large portion of our farming is already for animal feed. Something like 800 million people could be fed if we planted different crops instead of animal feed.
* There is literally no reason to go vegan instead of vegetarian for most people. Almost all the ethical reasons behind veganism can be routed around with minimal effort.
* As someone who eats a mostly vegan diet, the dietary concerns for the vast majority of people are nonsensical. Yes, of course there are exceptions to everything, but there are entire countries that are mostly vegan/vegetarian that don't have these issues. B vitamins and calcium? Has his person done zero research? Both are absurdly easy to obtain in vegan form in the local grocery store of most somewhat populated areas right now, if everyone was vegan these would be staple foods.
This is absolutely the worst kind of sensationalized junk science to once again discredit a lifestyle that affects no one negatively.