Please explain your logic more clearly, I don't see the connection you're making between the occupations you mentioned and men dressing up to make an offensive mockery of women in the way they do for drag.
>They wear costumes intended to represent [Person]
>adopt a persona under Fake name
>act out every demeaning, offensive stereotype for s/laughs/entertainment, boften leaning heavily on the physical experiences.
>Then they take off those costumes and get to go about their lives, without having to live under those same stereotypes they helped perpetuate for fun or money
How is RuPaul doing anything different that America's next top model, Hollywood, or any other competition based on looks doing? It's just personal interpretations if you view it as empowering, demeaning, or even bigoted. They all get the same accusations levied at them after all.
