Earlier quoted context omitted.
If there's evidence that conferences are deliberately excluding women speakers, then that is a bad thing. Not just because of sexism but because the conference would be deliberately narrowing its field of potential speakers. But why would we favour new speakers who are called Katie (or only new speakers who are women?). We should choose speakers who are experts, and new speakers from all possible candidates.
> If there's evidence that conferences are deliberately excluding women speakers, then that is a bad thing. The thing is, it's rarely deliberate. It's a subconscious bias thing. Which is why people use blind talk submissions - they're evaluated solely on the basis of the content of the talk.
BUT if at the end of that you find out that your conference has all male speakers (or all female speakers, or all speakers under 25, or whatever) what should you do about it? I would say you should try your hardest to encourage more people to apply next time. There are loads of great projects for that like Outreachy.
What you shouldn't do is decide to fill it up with some "quota people" to make it look diverse.