Some people just won't learn: unprotected, promiscuous anal sex is not a healthy way of life. Case in point: Reuters reports that Rare Gay Male Sex Disease Enters Britain.
Does "society" bear some role for not heretofore
recognizing/celebrating same-sex relationships in a way that would
promote their stablilty? Yes. Does that absolve a large segment of
gay men in the developed world from not getting their act together?
No, it doesn't. This is a point Gabriel Rotello made a few years
ago in his "controversial" book 
Sexual Ecology, which looked at the behaviors that made AIDS an
epidemic waiting to happen among gay men - and offered thoughts on
making gay culture "sustainable" instead of
self-destructive.