I'm hoping that there's a context missing here. I can sort of empathize with not wanting a "male", "female", "white", "whatever" speaker. I want a person who knows their subject matter and can present it well. There are some women in IT who really know their stuff and do a great job presenting and teaching. There are women who don't. There are men who don't. I tend to agree with some other thoughts that it would be great to just look at someone's creds and go from there, regardless of anything else.
If this was the whole context and the UG leader just doesn't want a woman speaker, period, ... that's pretty sad.
I have a daughter. I want her to be comfortable with math, science, and tech. She may or may not pursue a career in one of those fields and I'll support her if she does. I'll also support her if she goes a different route. I will make sure that she knows that those options are available to her, though.