@Kazooie Because it's all kink material, ya know. They don't fu** for the same reasons ecchi anime exists. It would immediately be hentai at that point and really hard to produce (speaking on animated stuff really). This guy can only get stronger BY HAVING S**--not like he loves it or anything, but he did seem to enjoy it with Cassandra. He honestly kinda should be "GRRRRRR FU** THIS GIRL-WORLD" since he's been molested from childhood, but trauma and accuracy isn't really what this genre is for....anyhow.... Western/American switched worlds aren't nearly as popular as the japanese/korean ones BECAUSE it is a fetish too. Sometimes that takes all the fun out of it for some people. Particularly, I think the women who enjoy those novels prefer it the other way, while of course the guys want the MC to be a Casanova.
I mean, think about it....the point of a role-reversed world is femdom and matriarchy, so like, of course, most guys are weak, it's the point, and I bet most female enjoyers love that which is why most of the genre is probably that way.
I mean, this and most literally starts with pedophilia/shota/ageplay. And the demographic who likes that stuff enjoys power imbalance sh**, weaker MC.
For a lotta guys, the Fantasy is being surrounded by a bunch of women and being special while for female viewers it's watching a guy get toyed with and used by a bunch of women because he is just another toy--a special one. Don't think the norm is changing because that's the main drive. Gender-roles reversing kind of assumes guys WOULD be "Scawway girls" lol.