Not only do they not know, they don't even care ! My sister in law asked me what I thought of Obama- I told her flat out:" he's a communist. Whatever you think of the ideal, every time it's ever been tried, it has always led to mass killings."
Basically she answered, " so what".
Communism kills. The Revolution devours its own children. The Communists with the most power kill anyone they think stands in their way. They kill the innocent. They kill lovers of liberty. They kill their fellow Communists. They kill socialists and other fellow travelers. They kill useful idiots.
When confronted with the fact, it could be that she just didn't know what to say and just issued a flippant reply just to have something coming out of her mouth, completely disregarding the absurdity of her answer. Or it could be because she, like Communists, and in base human nature at its core, will stop at NOTHING to get what she wants, and so the history and the prospect of tens of millions more human corpses doesn't mean much to her.
Who can divine her thoughts and motives? Perhaps she will not care until they come for her.
Cordially,