I didn know Godzilla and Destoroyah had genders. Why do you think they are male?
I don’t. For simplicity’s sake, I refer to Godzilla and Destoroyah as “he”. It was easier than writing “Godzilla” over and over again, and much, much better than saying “it”. Perhaps I just assume Godzilla could be male, like I assume Mothra is female (not that it matters: who won when Mothra fought Godzilla?) My fellow GvD aficianado Rossana feels that Destoroyah is a female. As a biology major, she backs this up by pointing out the qualities the Final Form shares with regular female crabs.