Your best choice here is not to yell, but to open a veggie restaurant.
Am I forgetting that this is America?
You don't like working there, you don't have to. The choice is yours.
You don't like burgers? You don't have to eat them. The choice is yours.
I don't like vegie burgers, I don't eat them. The choice is mine.
Point in fact: As we all have rights, we all have to observe other people's rights and when necessary find compromises to suit the given situation.