I am just going to throw this out there for consideration. Trump often has other meanings to what he says beyond what it appears like on its face.

I think the context is being lost in the sub context of everyone's complaints - Trump's mean, Israel bad, blah, blah, blah. What Trump is saying is that if you people want to bellyache about how Israel does things, how about we send in the Isis decapitator to take care of Hezbollah so they can get a dose of their own medicine. Like Julani and his forces are going to care about civilians in apartments? He sure as hell won't send warnings to civilians to clear out before the bombs start dropping or attacks begin. You think casualties are high now, wait till Syria has a crack at it. They have been itching to settle scores with that bunch. He is giving Lebanon and Iran a choice here. Pick one since you don't seem to be able to deal with the problem yourself and you don't like the way Israel is handling it.