Why so much hate against vegans?
Being reminded of the existence of vegans implies there's a way to live without eating meat. Eating meat directly harms animals which most people don't want to do. This leads to a conflict between not wanting to harm animals (belief) and eating meat (behavior) which causes a mental discomfort (cognitive dissonance). Some people handle this discomfort by being angry at vegans ("shooting the messenger").
#vegan