there was a cartoon reflecting a popular view at the time that only druggies and queers got Aids which showed a homosexual couple getting struck by lightning with a voice from above "DON'T DO THAT!"
Times were less enlightened then and AIDS started spreading to the "normal" population - or at least those who considered themselves normal.
Remember that homosexual acts between men - even in private - were illegal until 1967 and a sizeable minority or even a majority of the population thought MPs were a bunch of poofters passing the change in the law
I don't remember the cartoon but I do remember a lot of people going around seemingly not that bothered due to as you say quoting that "it was a good thing as it killed off queers and junkies"
I also remember the joke about what does AIDS stand for - Ass injected death sentence
As you say times and thinking were very different back then and it was of course before we knew about HIV which obviously leads to Aids and everything was just lumped together under one banner.
Can't remember if it was an official announcement but I do remember someone saying that "They recon" in 5 years time everyone will at least know someone who either has it or has died from it.
The prophecy of doom didn't come true but as it spread or was rather identified in more people the general population started taking it more seriously as it wasn't fully understood how it could and couldn't be caught, I recall someone at work claiming it could be caught from touching items such as door handles if someone with aids had just opened the same door
I believe that HIV isn't actually that easy to catch whereas CV19 can be caught just from close contact with an infected person so clearly a much higher risk than HIV, realistically CV19 has probably killed more people in this country than HIV / Aids ever will