Ignorance has nothing to do with it. Are you arguing that foreign entities will ignore disrespect they are shown just because there is no governance (yet) to back it up? That seems unlikely and downright saintly of them, particularly given that our own citizens aren’t doing so.
As for Trump… I don’t think the Republicans would suddenly forget why they want a Republican president if Trump beats Clinton. They won’t. They’ll negotiate and deal with Trump and more importantly the constituency that voted him in, and that won’t always work out for the best. But they aren’t going to be able to just lock him down — that’d be difficult to do with a president that *is* above torching the entire room if he doesn’t get his way. Trump does not have those kinds of scruples.