Stealing this argument. Not that I hope it will change anyone's mind, but I hope it hurts their feelings at least.
Can one of you kind ex-mormons brief me on the context?
I googled it because I couldnt remember the specific details:
A polygamist, Young had at least 56 wives and 57 children. He formalized the prohibition of black men attaining priesthood, and led the church in the Utah War against the United States.[4]
If it were me, I just wouldn't acknowledge that the question was even asked.
The only response that question merits is silence or, "I don't discuss my personal life with strangers." If they keep pushing, accuse them of sexually harassing you.
Or, you could antagonize them and say, "I'm pretty sure that's the name of the prostitute from last night, so I guess so." but that's probably not wise if you're at work.
The meme may be lost on you if you are not an ex-mormon. That question is asked of everyone from age 12 on up by their bishop (think pastor or preacher in normal Protestant context) in private, regularly scheduled interviews to determine whether the person is worthy to remain a member of the congregation in good standing, and as is typical in these sorts of things, lying is frowned upon. It's sort of like a reverse confession.
It's suuuuuper creepy, and among other things teaches teenagers that they're bad people and hypocrites who will need a lifetime of church attendance and internal promises to repent and do better so they don't disappoint anyone important to them.
