This is your problem, you don't know the first fucking thing about what you are arguing against yet it doesn't hinder or slow down your belligerence. There seems to be a trend growing as you're not alone in that.
There are people who eat a plant based diet for health reasons, real or imagined. They aren't really 'vegans" because they don't care about the animals.
Real vegans don't eat animal products for the ethics of it. They also use as little animal products as possible in everything else they can, not just food. A vegan tries to do the least amount of harm possible. People like you, don't give a shit, but get pissy and cry baby when its pointed out your morals are less.