Lets not forget that every time there were large scale killings (what these guys lived for) there was a church ORGAN playing HYMNS....

The truth of the matter is women were looked down upon and treated as second class citizens by the male dominated old world guys. It has nothing to do with sexuality (other than to suggest that their business was more important to them than matters of the flesh).

BTW - The ONLY reason I could even guess why Winegardner chose to make Fredo gay was his (Fredo's) attention paid to Superman's "equipment" in the Havana nightclub scene.