I get what you mean, I just don't think it is that simple on either in IC or OOC level.
On an OOC level, the GM and the players need to work together to develop and change the setting, either side trying to strong arm it is not going to go well. On a fiction level, changing societies through violent means is really hard, in a realistic setting there isn't going to be a clean line between the oppressors and the oppressed and simply killing the heads of state likely won't change the underlying cultural assumptions.
I do want the game to be an examination of psychology and society, yes.
But it is also a fantasy world with strong transhumanism elements.
The problem is trying to keep it somewhat grounded and relatable rather than completely alien to the players.
Yeah, I much prefer the former.
I personally find the elaborate costumes that you see on a lot of RPG covers and, especially, in mobile game advertising, to be really silly and a big turnoff.
In the distant past, the setting made extensive use of genetic engineering.
One of the results is that women are much closer in size and strength to men, to the point where the average woman has a greater lower body strength and the average man has greater upper body strength, but individual variation is far more important than sex.
The mechanics of carrying a child for nine months and then nursing it for several years, as well as the ability of a single man to impregnate many women in times of catastrophe remain unchanged however, and imo this likely has a far bigger effect on gender roles than strength ever did.
That's more of a personal preference for how I run a game than something that is baked into the system.
There is also the issue of how one even goes about sexualizing a male. Amongst game criticism, the standard ultra feminine woman with an hourglass figure is universally seen as a male sex fantasy, while the standard muscular bearded violent super manly guy is seen as a male power fantasy.
I personally prefer roguish men with a swimmers build and tall, full figured, athletic women in dominant positions; and so if I am going for "sexy" that is what I will ask for, usually just in the most revealing clothing that is practical for the role; but I know I am absolutely not the norm.