This isn't really a debate though, calling it one gives unneeded credibility to a bunch of idiots. For starters, the fact some women prefer, on average, hotter temperatures, does not somehow make cold temperatures sexist against women. It's about as sensible as saying blue walls are sexist against women because women prefer pink!
Plus there's another problem. Women prefer hotter temperatures, but why not cover up? Women prefer warmer temperatures because they don't want to cover up that sexy cleavage, which if you look at, makes you a sexist dickhead!
It's time to stop being polite. This discussion was never civil to begin with. It carries an agenda, and it's one we need to stop acknowledging as legitimate. Stop suggesting there is some kind of debate to be had here, there isn't. If you're too cold you can just put on extra clothes. If you're too hot, then too bad. Obviously the fair solution that leaves everyone happy is to keep the place colder.