I think the camp gay on television is just like any other television stereotyping, be it the attractive woman with perfect figure, or the white middle class successful man - it's just not a reflection of the real world, it is whatever brings in the viewing figures. I think the camp device is mostly to say 'this is the token gay' no? Else we might not notice and think they were 'normal' (which of course in the real world gay people are). Hence why I think mostly it is damaging but there you go.
It is like when you hear people say they are surprised when someone is gay, why should they be surprised at all about someone else's sexuality, other than they are applying silly television style stereotyping.
PS I wonder if 'camp' only annoys you blokes? It doesn't bother me at all!