He went to the wrong place..he should have gone to the US..I think they offer courses like that in California.
Jokes aside...it is indeed a point where one feels embarrassed but no need to feel ashamed being a Pakistani. Think of it as an individual act of a person...and they are everywhere..every nationality, every age group. Only a couple of months back there were news of a dentist in Toronto doing funny stuff with a patient, a 24 yr old fondling an 80 yr old in a care facility ..the list is endless..
My humble suggestion..hold your head up high..be proud of what you are, your roots, your origin. Ignore the airforce guy as an exception... trust me..others think the same way.