Maybe I'm just naive or haven't thought of it enough but I can't really say that is a concern for me. Atleast not yet.
Whoever won was going to continue interventionist policies throughout the world (besides maybe Rand), maybe Trump won't? He has spoken before how he thinks nation building in these hellholes is a disaster. We'll see what happens.
Main reason I don't like him is because he is just in way over his head and because he is a big gov't fiscal liberal who thinks government has the answers. But I can't say I've really been alarmed by any of his twitter rhetoric or anything. If it continues when he is in office I'd change tune on that.
As far as like not standing with NATO allies, I just see that as campaign red meat to globalization skeptic Americans.
And again, I can't stand this guy but he does remind me of Nixon in the sense of foreign policy unpredictability. Willing to challenge China or Russia on their BS. Nixon made the argument that the US had gotten too complacent and predictable in foreign policy dealings and that we needed a departure from the status quo. Certainly the results of that stance can be debated, but I think it has some merit.
as far as trump being against nation building I see that as just cause it's the popular thinking right now.. after the Iraq mess.. shit in Syria etc.. tonight he pulled from the Reagan playbook aka pro military industrial complex but not actively bombing people .. "peace through strength".. it's just the popular opinion right now...
Please remember who was going toe to toe with mr 9/11 war drum beater Rudy who was part of trump campaign.. Ron was there telling them all how they were wrong .. decades upon decades of intervention was creating headaches and enemies for us ... and getting loudly booed by the war hungry GOP establishment..
like dubya (ran on no nation building) he will flip on a dime if the publics perception changes...