The fact they could be blackmailed means the rest of the society didn't like them either. If a minority is doing something today that the rest of society thinks is wrong but actually isn't, then don't we have a more serious problem already by persecuting whoever is the modern equivalent of early 1900's gays?
Totally different things and it’s almost an offensive comparison.
Someone’s HIV status, for example, could definitely expose them to social stigma. Is that a problem? Yeah; but it doesn’t change human behavior — there are some things we would prefer to keep private.
