I am glad you mention nationalism and tribalism. It is indeed very true that nationalism is a form of imperialism, and that’s why “nationhood” should only exist as a temporary confederation in times of difficulty. There are some however who believe all “Europeans” (defining them differently according to “whiteness”) are one tribal entity that should be united against immigrants and those (usually considered to be Jews) who are plotting all sorts of “anti-white racism” and even “white genocide”. As you can imagine, with the “white” history of imperialism and colonialism, this is some very abhorrent stuff. It isn’t any different from Hitler’s way of thinking, except he made war on “inferior” ethnicities within Europe, in hopes of raising the “German race” to pan-European tribal hegemony. National tribalism is a horrible concept, but I advocate re-education rather than a “holy crusade” against it, because otherwise people will make a counter-culture out of it and embrace it secretly, as we now see among the alt-right.