Sorry guys but its gash and unacceptable. However, I would accept that the controller made a mistake and I would not hang him for it - a kick up the a**e and a clear message to all US controllers that it is not to happen again.
2 further thoughts - what would be the reaction if I allowed a young child onto the flight deck and allow he/she to transmit to US ATC as I approached New York airspace - I'll bet an F16 would be on my wing in a couple of minutes !
Secondly, it is quite true to say that the kiddie in question was a lot clearer on the radio than the average US controller !!!