This is all up for discussion, but review the two concepts.
Eating or mental disorder characterized by extreme and excessive preoccupation with avoiding foods perceived to be unhealthy. Dr. Bratman claims in rare cases, this focus may turn into a fixation so extreme that it can lead to severe malnutrition or even death. Another credentialed expert says that these people are obsessed with refining and restricting their diets per their own understanding of what foods are truly pure. Dr. Bratman believes the orthorexic desires to become pure, healthy, and natural. Orthorexics are unable to take part in everyday life. They self-segregate and isolate themselves as well as become intolerant of other people's views about food and health.
I'm not going to bother describing vegans because the above paragraph describes them perfectly with regards to their approach, view and avoidance of all animal products.
Vegans act like everyone else is mentally off, unbalanced, wrong or hateful for eating any meat and dairy products. Maybe they need to look in the mirror and admit their orthorexia nervosa. If they petition the government for orthorexia nervosa to be accepted as a mental disorder, they can start receiving SSDI and EBT. I would never tell them to eat shit because the extremists may end up doing that within ten years.