>>149846805
I'm still not necessarily convinced about that. But everything hints that he's into breeding and impregnation. See pic related, the film's ending was predictable enough based on Genndy's known patterns.
Primal touched on it earlier somewhat, but this movie directly asks the question. If you can't impregnate a woman, are you even a real man? The movie offered comforting cope that virility isn't such a big deal, but it still ended the same way as Primal. The hero's legacy would live on in his kids.