You're right, it is. Surely you're not surprised to find rude people on the planet? I've had women say, "I can open the door myself, ya know."
And then they wonder why men aren't gallant anymore. Why we don't stand when a woman comes to the table, is introduced, or gets on the bus/train. Why men don't hold the door open anymore. Why we don't remove our hat when indoors. Why we don't dress for dinner. Why we expect them to pick up the check once in a while.
My god, my god. Women don't seem to want to be cared for, loved, defended, treated with courtesy and politeness. They see that as sexist and misogyny. THAT'S why many men don't include women in the group. No matter what we do, it's wrong. So we ignore them. It's our only defense. Women: you get a man or nothing. Don't expect us to become women for you. Date homosexuals if that's what you want in a man.