Here is a serious question, how does the issue of gender identification negatively impact your (the reader) life? I don't care if someone thinks of themselves as male, female, neither, both, or a raccoon. It just doesn't matter to me, if it makes them happy to think that way, sure. I don't get tattoos or piercings either, but if you have one more power to you. You don't have to live your life to please me.
Now in the sports arena there might be questions. I get that. But if on the street you meet someone who you believe is clearly male and they tell you they are non-binary, how has this damaged your life?
Again, I don't get why people want to do this either, but I don't see any way it is hurting me if they do any more than the tattoo or piercing (or long hair, or beard, or being left-handed, or being vegetarian, or being a Republican/Democrat). Can someone explain the harm to them from all this.