What would be an interesting video would be what are the worst anti-meat arguments or pro-Vegan arguments that Vegans make.
Some of the strongest arguments for Veganism are the health and moral aspects of the modern industrialized food/meat industry.
Some of the weaker ones are things like "Who cares if some animal products are "healthy"? Would you eat another human being because it may be healthy?" (found in the comments to this video).
Within the Vegan community (as represented on YT) there is wide divergence on what constitutes a healthy / appropriate vegan diet. Fruitarians versus non fruitarians, raw vs. cooked, starch-based, etc.
Some of the arguments coming out of those individual vegan communities are in stark contrast to other vegan communities - such as "any cooked food is dead food".
There's a tendency in vegan arguments to reduce everything to one variable, meat within context of the SAD, as if that is the only health or moral choice available to people who eat meat. I've met very healthy, vibrant and OLD Tibetan monks who eat some meat as part of their diet.