This is one of the most out of touch comment I've seen in a while. Men do all sorts of things besides doing make up to appeal to women yk? They work out, they eat healthy, they shape their faces to be ideal, or at the very least they're financially stable. You cannot expect an unemployed fat belly chud to go out and suddenly do good at the dating market. There's a reason why "I want men making 6 figures and be 6ft+ tall" meme exist. Jfc
And while men don't have the 9 months of downtime due to pregnancy, if you have actual common sense, you would realize that they still should take responsibility for the child. That's why even in a reversed chasity world, men don't go around fucking like you said
I'm not saying that men do nothing, just that in our patriarchal society they are expected to do less than women, and that there are lower standards for men than there are for woman. The fact that women are expected to wear make-up while men aren't is simply one aspect of this which I was drawing attention to. And, like, woman are
also expected to do basically everything you just indicated that men are expected to do, you know? (Have you seen how people treat fat women?) The whole "woman do not have to put in any effort to get laid" thing is a myth.
Also, men being expected to "take responsibility for the child" is a cultural thing. There's no strict biological incentive for it besides preventing them from dying before your genes are passed on again, but there are other "solutions" to this problem, such as communal raising of a child, or having the woman's family take care of the child, which I believe would be more common in a fully thought-out version of this sort of setting. (I don't want to ramble too much, but I can go more in depth on this if you want.) Additionally, men don't even always "take responsibility" in our world, especially when they are highly sought after. You'd have to be the "out of touch" one to not realize that.
Anyways, my point in the second paragraph is specifically about the biological incentive of men in this fictional setting to be picky. It's a separate matter from how, in our world, there are higher expectations placed on women than there are on men. I'm pointing out that this is such a fundamental biological change that it would cause the setting's cultural dynamics to be much more complicated than a simple A / B swap. Hence the point the point in my first paragraph was kinda irrelevant, right?
The "men are not picky" is just the starting point, from which a more complicated culture would emerge. This, in all honesty, probably
would have a high likelyhood of men ending up with standards again, but I think it would probably be more for political reasons rather than biological ones. But, yeah, I probably should have been more clear on that in my original comment.