Is it simply not acceptable to point out irrationality or over reaction any more ? See the thing is we as men and including myself believe women are crazy because behavior seemingly comes out of nowhere with unexplainable intensity. I myself acknowledge I believe this on a deep level. I don't call my partner crazy out loud, but I do in my head.
So when your woman is having an emotional reaction you don't want to deal with or are unprepared for, what is the solution? Obviously we shouldn't dismiss them and call them crazy, irrational, or ask if they're on their period, but what next? Seek to understand?
Also one more question, why is it not a legitimate question to ask where a woman is in their cycle when it so clearly affects emotion? Supposedly it's dismissive but it seems like a totally valid question like, "how tired or hangry are you?"