That said, "But only the fags get AIDS" vs "Cancer is preventable if you just stop smoking" doesn't seem like a thing of the past - this level of argumentation around AIDS, and about other topics - vaccines, GMOs, artificial sweeteners - is something I hear from most people I meet. I cherish the people in my life capable of deeper thought than that.
There was a catchy phrase wildly in used when and where I grew up (translation doesn't make it justice): "AIDS isn't caught, it's transmitted". Le SIDA ne s'attrape pas, il se transmet.
The first was Diana in 87, opening a new hiv/aids unit and shaking the hands of a patient.
The other was a character in a soap (watched by over 1/4 of the population - imagine a show with 90 million viewers in the U.S) becoming HIV, and all the various reactions both of him living with it, then later when the neighbourhood bigots found out, that was in the early 90s
I know it wasn't your intention and this is a serious topic, but I did chuckle at the thought of this.