"I would not want to leave my 3 year old in this mans care" Of course you wouldn't, his next act could be Madonna in a pointy metal BRA.
"first it was not a lip sync - or a show the parents went to see" No, it wasn't. It was an orientation that an administrator tried to bring some light hearted fun to. If it would have been a woman dressing up like Justin Beber and singing for all the kids, I would bet there would have been no problem.
It is that taboo word of "drag" that sent narrow minded paranoid parents like you into a panic.