I feel there's a connection to how
1) some of the early foundations of shonen come from mangakas watching & being inspired a ped* Italian film sexualizing a 15 yo "pre masculine" boy as "beautiful" (look up Bjorn Andresen)
& 2) #That style of weird feminization "men become women when sexualized" that is common among that crowd

like that shit really kinda goes back to Ancient Greek or medieval JPN ped*rasty exploiting "youthfulness" as the "feminine ideal"
AND it all feeds back into SUPER misogynistic and patriarchal and bioessentialist ideas that impact everyone

It sucks bc I'd love to play around with characters' gender in like the lesbian trans gay way, but all that patriarchal "youthful" feminization stuff uses/appropriates a lot the lingo... :(
That's why I mostly stick to bears and butches for character gender fun these days. #That crowd doesn't even seem to be aware of those from what I've seen