My wife isn't a math and science person, and she does not have the aptitude to be a programmer. Does that make me a sexist? Does that mean that all women are just like her?
The answer is no, it doesn't.
People focus on what they want to hear in order to validate their opinions. Who among us that is ambitious hasn't grown up with the pain that is going against the grain?
It sucks to be different, but that's the way it goes.
Edit: Here is an example of what I mean.
"For those of us who aren’t, it’s a regular signal that we’re not considered, that maybe we don’t belong."
Absolutely not true. It's just a speaker trying to build rapport with their audience by talking about something they understand.
"The heavy drinking makes some of us feel unsafe."
So only guys drink heavy? First of all, if you don't want to watch heavy drinking, don't go to an after party at a bar? Second, I've seen just as many wasted females as males at conference parties.
"A paper cut for every conference."
I've been to maybe a dozen conferences in the past 2-3 years and I haven't seen any of this. Maybe I've missed it, or I'm not looking, who knows.