A group of people who, though sometimes wrong and extreme, will be the ones laughing when they're 100 years old and most others, mainly meat-eaters, have died of obesity, heart attacks and strokes.
(80 years from now)
Vegan 1: Hey, remember that smartass who said that, just to teach us a lesson, he was going to eat 3 animals for every animal we refused to?
Vegan 2: Oh, you mean Meaty McCarnivore? Yeah...he died the same day.
Vegan 1: Excellent!