Had me until the last sentence.

No animal deserves to die when humans can get all of their nutrition from fruits, vegetables, mushrooms, nuts, seeds, legumes, and algae.

Except for B12. But then again, most omnivores are deficient in B12 too, and magnesium, zing, K2, etc.

Thankfully going vegan likely means you eat last processed food and more real food, which increases vitamin intake.