Firstly, I don't think the porn-buying public reflects society at large. Most adult movies are lucky to sell 5 - 10 thousand copies, a very small number in a country with nearly 300,000,000 people.
Secondly, where is this great customer clamor to keep male-male contact out of straight porn movies? Fact is, there is none. There may be a few people wanting to keep it out, but since when did this justify a total ban? Even if it was found by a survey that 80% opposed it, how does this justify a 100% ban?
As for double standards, I'm not the type to take them lying down.
Regards, Kate
P.S. You talk about "society's general view". What needs to be remembered is that the straight porn industry is encouraging this view. The straight porn industry is a pro-active party in the promotion of selective homophobia and segregation in relation to gay/bisexual men.