Sorry SD, I do not agree with you.  Hillary had declared that she wanted a no-fly zone in Syria, which in my opinion would have protected terrorists and prolonged the suffering of civilians.  Additionally, and significantly, Hillary's arrogant no-fly zone would have brought us into direct conflict with Russia who would have in my opinion responded with nuclear force to the downing of  Russian planes by American jets.  Nobody gets upset about NK.  And yes, it is time for the US to retreat from paying for the world's wars.  Contrary to your suggestion about other countries arming themselves, we would likely see greater attention to peace and nonviolent conflict resolution.  They do not want to pay for their own standing armies.  Confrontation is fine if someone else is paying for it.  Trump's retreat from carte blanche funding of world conflict is better for all.  So yes, I think the "concerns" of the Hillary crowd are very very profoundly confused.