As far as your first wall of redundant citations (which was unnecessary since everyone knows you ca live on a vegan diet), you'll notice they all include some phrasing of the qualifier, "properly planned," i.e. supplementation.
If you have to take a pill or eat processed and fortified foods to make your diet work, I'd say that's a pretty good indication that it isn't how your body is meant to function day-to-day. Furthermore, it's widely thought among anthropologists that meat played a big part in making us human. Nothing fallacious about it.
Sure, your body can function on a vegan diet. That doesn't mean it's optimal. There's a reason you all look so tired and waxy.
The one thing you don't have a citation for is your moralistic stance that it's inherently wrong to eat meat, necessary or not. Do most Westerners eat more animal products than technically necessary? Of course. Do factory farms need reform? Absolutely. Should farm subsidies that make the price of meat artificially low and encourage overconsumption be ended? I certainly think so. But whether or not it's wrong is a purely subjective and not logical thing.
A further note on necessity: Are you at all familiar with deer hunting? One of the primary reasons for its legality is because otherwise, the deer will overpopulate and begin to inbreed, leading to destruction of property and crops as well as deformity. Our consumption of deer is literally part of the ecosystem. Life consumes life.
Moreover, reason the UN is encouraging reduced animal product consumption is because of the massive amount of resources currently popular farming methods use in order to produce them. However, if we too the steps I outlined above, the market would adjust to discourage the overconsumption that is the real, underlying problem.
Finally, on a more personal note: I have PCOS. As such, a low-carb diet high in animal products has been incredibly therapeutic for me and a ketogenic diet even more so, although I haven't gotten around to fully committing yet. If I got my calories purely from plant sources, I'd be the size of a house and diabetic by 35.
10-20% of women in the United States have PCOS. We really don't appreciate your fucking judgment.