gay/bi femboy can just go anywhere acting cute, going "uwu :3" , and the penises will come to them.
straight femboy does that and women ignore you. now, granted, some women are into that, but the difference being that you'd have to be a "masc-femboy" to do all the work making the first moves to possibly make such a relationship happen and at that point you're hardly being fem anymore. Being shy and effeminate around women is never going to work in your favor.