Had all active male homosexuals in the U.S. been quarantined back in the late 70s-early 80s, AIDS would be a medical journal footnote about an exotic foreign disease.
I thought Eddie Murphy had a pretty good spin on this back in the early 80’s (there is salty language — so, please don’t click on the link if you are offended);
http://www.youtube.com/watch?v=egoDQv43hAw