We can't even have a women's(male) conference

I'm so annoyed. I am at the Anitab.org's Grace Hopper event, which is the largest gathering of women/non-binary technologiats in the world. When you filled out the form, you had to list that you were a woman or non-binary to attend.

During the opening ceremony, the chief diversity officer, who was not scheduled to speak, got on the stage to advise us that spots for women were taken by men who marked themselves as women/non-binary who then used pronouns "he/him" to officially register. He advised us that these cisgender men took the spots of women and non-binary people who had tried to register.

There are more men here than there are supposed to be. One guy had his mother come and try to register with us. They are taking opportunities that were set aside for us, including the onsite interviews and meeting with top professionals and companies around the world. The chief diversity officer announced that they stole those spots unfairly. Great for him to speak up, but it's bullshit that this happened. Cisgender men do not need more opportunities in tech. They are the majority. We need those spots. Underserved people and communities need those spots.

Edit: I didn't want this to become a non-binary, trans, or post against people who truly were invited to this event. It is about the large number of, statistically speaking, most likely cismen taking spots of underrepresented women in technology, our trans-sisters, and the truly non-binary.