Yeah this subject is the ultimate agitation on most any site on the net. Generates an argument whenever it comes up... So, whatever, here are a couple thoughts,
It seems funny that people would point to deficiencies as a reason to eat meat. Because most the meat eaters I see look deficient as well.
Notice that there are two type of "diets", exclusionary and inclusionary. Focusing on the first is often required for people to leave behind unhealthy habits. Focusing conversations on exclusion can tend towards arguing though. Focusing on the inclusionary diets is more informative. For instance I am interested in eating foods high in
RNA (which can be done with or without meat).
"There is no energy crisis, food crisis or environmental crisis.
There is only a crisis of ignorance." --- R. Buckminster Fuller
To be relevant, "There is no nutritional crisis. There is only a crisis of ignorance."