It's the fact they chose, as a frontman for this body of positions, a person who's not only blatantly incompetent -- but who may very well get large numbers of us killed (for example, by unnecessarily provoking a confrontation with North Korea) and/or potentially cause extreme, irreparable damage in a whole bunch of other ways -- that's the part I don't get. Or that they can't see this basic disconnect (between the sentiment of their positions; and the reality of the end result of the course of action they advocate in response to this sentiment). When it should be blindingly obvious.
EDIT: Failed to notice that this thread represents the very essence of a "pure politics" discussion, and hence is strongly against site guidelines. Nonetheless your analysis was very succinct and thoughtful.