I’m the same age as you - while we weren’t totally innocent, we did NOT do anything like that in public with others watching. In fact, I didn’t learn that one of my best friends had been having sex with her long term boyfriend until years later when we were in college. I think this woman is a nutjob - I just don’t believe anyone in 1982 would have stood around laughing as a line of boys waited to rape a drunk/drugged woman....seriously, how disgusting would those girls have to be to allow something like that?
Seriously, none of the girls I knew would have ever done stuff lie this. It would have been social suicide.
And in High School - we traveled in packs and if anyone became very inebriated, the rest of us would see them home safely. Where were her friends??