Heterosexual spaces just don't acknowledge that the concept of 'gay' that they've developed means anything other than 'man who is sexually attracted to men'. However it blatantly creates extreme hostility and fear in men of the term, and uses other implications of 'gay' which clearly show that, in practise, it is just an exaggerated/ extreme version of the earlier 'third sex' or 'namard' (non-man) concepts.