I wonder if there was some kind of event in the 1980s and 1990s that caused a large number of american lgbt people from gen x and earlier to be unable to respond to this survey
Replying to @ggreenwald
There's been a huge explosion in the number of Americans identifying as LGBT. Close to 1 out of every 5 Gen Z so identifies (17%). That's more than a 4-fold increase from Gen X (4%).
But almost all of the increase comes from those identifying as bi or trans, not gay or lesbian:
