[dragonwriter]

> See e.g., the old restrictions on allowing gay people to hold security clearances, which stemmed from the fact that it was easy to blackmail gay people

AFAIK, they did not stem from that fact, that was a later rationalization from keeping them around. They stemmed from the fact that being gay was seen as a serious moral failing in its own right, and indicative of propensity for other moral failings.