Are We Going to Win Over People Against Veganism?

The only way this works is if you have close to 100% veganism, right? A huge land use and destructive land use practice is animal husbandry. So sure, if you eliminate all that, you free up a ton of land. But the question again, like for the degrothers is politically, how are we going to win over people on a program of mandatory veganism or widespread vegetarianism?