are you confused by this?
there's a reason that most drag queens identify as gay men, and don't have the slightest interest in transitioning. the routine is a way for them to carry out their male desires for control. so, the whole thing is a misnomer; it's not really about men impersonating women, so much as it's about men being men. it's a male thing through and through.
the transgendered side tends to avoid all of that kind of stuff.