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We just want to be left alone with our CGDCT, if we wanted to watch homos we would but we don't because we aren't fucking homos nor fujos. We don't give a FUCK about what dudes do and want them as far away from our hobby as possible, be successful with your own audience if you are so capable and do collabs with your own kind, simple as.
Now for a bit of a more serious explanation: CGDCT is naturally incompatible with male characters because they destroy the female interaction merely by being there, mind you this isn't because they explicitly want to but simply because of how human dynamics works. If you put a single woman in a group of dudes it completely changes the group dynamics, same way you put one or more dudes in a group of girls, it changes the group dynamic too, and this being the entertainment industry makes for a completely different experience than most of us want. Another example of this is what some people call "the nijification" of Hololive, because this was one experiences that nijisanji offers unlike hololive.