Today was one of the worst days of the year, Halloween. Yippee. Everyone is celebrating the scary & spooky. But I think that we should avoid that kind of thing, not champion it. Keep it under the bed... and out of the White House.
What makes Hillary Clinton such a scary proposition? Besides being wrong on just about every policy front, she's particularly wrong about foreign policy. And, in terms of changing the hearts and minds of Hillary supporters (though, many are just doing it because “FIRST WOMAN PRESIDENT OMG!”), I think the best point to use is that foreign policy.
Particularly the certainty that she will be the catalyst for World War III.