I've been vegetarian for a couple decades and have no problem with vegans.

I don't think I've ever been to a pizza place that didn't just let me choose a vegetarian pizza with real cheese. I also love Beyond Meat, but most veggieburgers I ate prior to Beyond Meat were vegan too, though few places used cheese or egg. You can make a vegan black bean burger, or a great vegan portobello. Veganism isn't what converted places to Beyond.