It's big diffrence between "hate" and just don't like it/feel for it.
I mostly only listen the girlgroup, mainly because I just like the music of the girlsgroups better and I have mostly preffered female groups back in the old days (Destinys Child, TLC, All Saints for example). Is also often big difference between BGs music and the GGs in kpop where GG have a bit lighter upbeat and higher tempo kind of music that is more to my liking, compare to the boygroups that have a bit more darker, slower and with a bit more rock/R&B kind of music.
But sure, it's also a bit about looking at boys in makeup moving around a dance floor is not as fun as watching girls do the same thing, at least when you are a hetro man.