They have a right to self defense like anyone else, illegal aggressors should be killed. Nationalism as in racialism. I have no problem with defining a country on principles you have agree to follow, in fact its one of the best forms of countries. I am ambivalent to apathetic to "Iran" remaining "Iranian race" or "France" remaining "French race".
Haven't defining country over "principles" been proven also as failed thing? Just look at most recent example. A illegal invasion of foreign country. Wouldn't you now agree that principles that that country is build on must be wrong and evil and world would be better off without any other country that says they rely on them?
I'd gladly agree all other countries should disengage from and route around Trump America because its sliding into ethnicism and its attendant stupidities. But I see your broader point how the USA has been having foreign adventures even before trump.
I will admit that the USA is a bit of a funny one. It has in some ways been nice to the people living there but its foreign policy has been very violent. I'd say again though its more of an indifferent to race reason they do all this bs in the middle east and latino countries.
