... and realise that they are little more than a geographical smudge between Canada and Mexico that has had it too good for too long.
Most of them will go into shock of psychotic proportions. Many of them already have.
They will be appalled to learn that there are rivals out "there" they will need to be polite to. Many of them are nuclear armed, so politesse is all they have as a negotiating chip.
The point is of course that the US is at the mercy of countries and blocs that neutralise any advantages, economic and military, uninformed Americans like to think the US has.
So Obama's bowing here and there simply acknowledges global realities.