I wondered about that, too. I had a roommate who was vegan and an animal rights activist, and she always complained that people treated her differently. I felt bad for her until I realized her attitude was why people treated her like a bitch. I caught her and her friends throwing away my makeup and toiletries because they apparently had animal biproducts in them (even beeswax was a no no). They claimed I was a hypocrite for being willing to eat a chicken breast, but refusing to eat my pet rattie. If that weren't enough, roomie waited until this moment to tell me the Bath and Bodyworks giftcard I'd gotten her for her birthday was an offensive and hurtful gift because their products aren't vegan (like I'd gotten her the gift to purposefully offend her!). I'm all for the ethical treatment of animals, but I'm very cautious around vegans and activists now.

It makes me wonder if OP is one of those types who thinks telling people they're evil for liking burgers will stop animal cruelty.