people hate vegans?

Why do a lot of people hate on vegans? Vegans are doing great things to impact the environment, lives of animals, and personal health. There are many misconceptions about vegans and veganism. Most people hate vegans because the ones that are 'pushy' and rude, but a lot of vegans get treated in bad way by SOME,NOT all non vegans. People also get wrong info about the health side of it. So what concerns or bothers you, what's so bad about it? ( I'm happy to help and answer questions that anyone may have) ☺️❤️