American nationalists don't compare with the European version because ours come in multiple camps.
>pseudo isolationists
America is the greatest country on Earth. We got this way via American exceptionalism and being separated from the affairs of the rest of the world. Going back to this will return us to greatness. They're going to be fine with international relations for trade, but the rest is your problem.
>New World, Nato, and Certain Allies sphere of influence/Empire
America is the greatest country on earth and has already established the greatest empire on earth. The new world is ours by default, nato members and our allies are glorified protectorates like Egypt or the Indian raj's princely states in the British Empire. They submitted to our hegemony protecting them is part of the deal. If Russia wants to do shit in its piss hole playground, ukraine, not my problem. This is basically an expanded version of the isolationist.
>expansionist Imperialist (neo con)
America is the greatest civilization in the history of Earth and has a divine right to enforce its will over the entire globe. Our victories over National Socialism and Bolshevism prove our divine mandate. All who oppose must face divine wrath and must be made to submit. Russia and China are inherent enemies.

European nationalists historically were only the expansionist imperialist type in competition with the other European powers.
The sad truth is kikes will undermine and use all three groups to benefit themselves