God, this pointless thread is still going...
This seems to boil down to the fact that some people are flamboyantly (rather than quietly) gay, and other people don't like it. And for some reason think that is a convincing reason to stop having parades or openly gay celebrities talking about their sexuality.
Maybe, just maybe.... if you don't like Graham Norton or Alan Carr... don't watch their shows and don't read their columns. I can't stand either of them. I have vanishingly little contact with their work. Likewise, if you don't like Pride for some reason (ahem), then perhaps maybe don't go and accept that there are enough people in the country who consider it worthwhile enough to put on.
The dizzying levels of entitlement in this thread are beyond belief.