STUPID is genderless.
I am an intense advocate of equality and support women's rights.
However, there are such things as common sense and common courtesy. When I go into a building, for example, I hold the door open for anyone who may be following behind me, whether they are male or female or indeterminate. It's just common courtesy. Unfortunately, back in my collegiate days, I held the door open at the dining hall for a group of three young coeds who were right behind me. The first two marched in without even glancing at me and without a single syllable of thanks escaping their lips. The third one said, quite loudly, for everyone within 20 yards to hear, "We can open our OWN doors, you male chauvinist pig!"
I didn't lose a beat. I looked at her and said, equally loudly, "My mother taught me that holding doors open for other people is called common courtesy. You're welcome, by the way. And if I'm a male chauvinist pig, I guess that makes you a female chauvinist sow." How was that received? Well, all the bystanders applauded.