I see you've edited this comment rather than responding, so I don't mind responding again. :)

I note you put that this percentage discrepancy is in your country. That's wonderful, but unfortunately, nowhere near universal. It also does not account for your other adjustment, that many XX people are not able to as easily ascend through rankings in clerical settings to become CEOs, or that many people are effectively shunned from trade work due to sexism within those trades. Should an XX person decide that they want to improve their chances by changing country, or to restart in these trades, they still face the massive financial, emotional and situation hurdles that any human does when going through a significant move.

The thing is, many types of work that XX people go into ARE dangerous, they are simply not dangerous in a way that people speak of in polite company. It can be extremely dangerous to be in trades that will not rock the boat for someone who has faced physical or verbal harassment, and it can be difficult to quit a job if it is ensuring financial survival. I have found it is much more common to hear from women/XX people that they have faced sexual discrimination or assault in their workplaces, but were unable to quit. It is a type of danger, and that is aside from the demands of the actual job. And, if that person does decide to quit, they very well may end up losing money in the process of finding a workplace that is not constantly threatening. My source here is myself.

edit: In any case, this is somewhat aside from the original post, but it is meant to support my point that allowing one or two days for common bodily functions under these conditions is equity rather than an unfair exception based on biological traits. I sincerely doubt anyone is going to find themselves with a massive hike in income solely because they are given the space to occasionally take a day to deal with intense physical symptoms that are both normal but deeply incompatible with the capitalist structures we all suffer under.