Wow so sorry you faced that. You are likely a lot more patient than i would have been. I don't mind educating people as long as they listen and don't throw bigoted statements and questions at me. The vast majority of people don't and most of my closest friends are cis women.
The person who said they'd leave the guy in the event of an accident and that the male part was the most important, can you imagine what a joy she must be in a relationship?