Personally I think you have to look at it in the context of an African experience, a mind that is not yet corrupted by Western Idea's of sexuality. thats my 2 cents.
the romantic songs dedicated to men are basically the same as regular songs sang in the point of view of women. idk if i would put so much weight on that being an indication that homosexuality is going on. to be clear i'm not saying it ISN'T but i'm not sure that this is specifically a sign of it. in truth most industries that have hierarchies and are run like a 'boys club' (the entertainment industry) tend to have issues with satanism, homoerotic initiation and the like. so i'm not saying that this isn't happening. the song thing doesn't strike me as particularly off though. men have been singing in the point of view of women since congolese music has existed. this is part of the storytelling aspect of the music from what i understand.