I want a vegan wedding
That sounds interesting. Why do you want a vegan wedding?
You can say it's a sacrifice for me. The idea is inspired from a friend's wedding.
You should have the kind of food you enjoy. If you're vegan, would be nice to accommodate omnivores; if you're a meat eater, some veggie options would be considerate.
Meat eaters can eat what they want, I don't care.
You should care because you're the one who has to plan for them to have the option to have meat or not. Even if its your wedding there will still be guests and you should be considerate of what they may or may not want to eat.