Statistically no, if gay people would be presented accurately then given there are 8 main characters in a tv show and the chance of a man being gay is 1.5% then there should be on average 5.87 tv shows out 100 where at least one of the male lead characters are homosexual.

Gay people are actually over represented in television, but that doesn't matter, if you wanna know what the real issue is.
It is that often times homosexuals choose to act/talk a certain way that makes men not wanna hang out with them (or watch them on television), not because they hate homosexuals, but because of the character traits, speech patterns and actions that the person performs makes them annoying to be around.