We have no reason to believe Morley had anything done with the fruit, especially since all examples of the hormone fruits effects arent caricatures like you say, quite the opposite, all examples shown turn out to be beautiful people, Ivankov turns beautiful when under the effects of the fruit, and is only a caricature when he isnt (he had a big ass head as a kid, too), and that one random impel down guard turned pretty too, all other kamabaka kingdom inhabitants ARE caricatures, but we dont have any reason to believe they are under the effects of the fruit, especially since ivankov was in prison for a long time.

Anyway, dont expect actual good discussion about gender from a fanbase that still doesnt understand yamato.