I know there will be folks who read this and think you shouldn't "let them win" – that you should stand your ground. They are wrong, IME. I'm so sorry you have to keep facing this ignorant abuse. I understand your qualms about giving up a principled decision about your personal responsibity in our world. But, by removing yourself from the places where such abusers skulk, you are still mitigating a kind of pollution – a pollution of our discourse and community, and a pollution of your personal health and well-being. And, removing yourself from that can only be in the best interests of your child's health and well being.