So, please, if you would give me some examples of male Final Fantasy characters who are sexualized, it would help us get on the same page. Also I want you to honestly ask yourself when you look at a male character's exposed skin whether you feel that skin is being exposed in order to be tantalizing to females/homos or whether it's meant to emphasize that they are physically powerful.
I'm troubled here because every single guy I can think of that is supposed to be sexually attractive appears to be muscular (and therefore powerful) because that is what is deemed to be sexy according to most females. So I could tell you Gladiolus, and you could say "No, he's strong, that's a power thing." And I don't know where to go from there because it's down to how you personally want to interpret it. The guy legitimately looks like a male model, to me at least.
Really, I think before we can go much further, you need to send me examples of sexualised males (...probably better to do so via PM or something) so I can get a better understanding of your interpretation of what they should look like. I've grown up being told (by females) that male wrestlers in tiny pants was not something they found attractive, but I'm getting the impression that this is what you mean by sexualised, because I'm unsure what else it could be.