Azilana, those 'gays' who dress like women are not gay.

They are transvestites. There's a big difference. Transvestites are known to be heterosexual (although of course there may be the odd exception). They try to dress like women and pass as women.

Drag queens are different again, though.

They are a really outrageous pastiche of women, their attire and make-up and so on is very theatrical, they are usually performers. Drag queens are usually gay, but they're not really dressing as 'women' as such, they are adopting a larger than life character who happens to be female, and they give free rein to the more 'camp' aspects of their behaviour.

I think if a gay man is dressing as a drag queen, he's dressing as a drag queen, not as a 'woman', it's a very particular representation.