Honestly, I was joking, but you have a good attitude and also a fair point worth engaging with
But the spirit of the meme is not so much about whether omnivores get the nutrients, but the shared lived experiences of vegans and vegetarians who generally have put a great deal of thought into their diet and then get lectured about it constantly. Lectures often delivered from people who have no idea what they’re talking about, because they simply assume the pepperoni on their pizza offers them a completely optimal nutritional profile