Its a Nationalist idea...
Yep.
I would go so far to say its a right-wing thing, but it could be a left-wing thing too. Definitely an illiberal thing.
I mean, you have to understand that even American Liberalism != Left-Wing. American liberalism is about standing up to the man and using Uncle Sam as the referee and traditional Liberalism is standing up to the man and having no referee because Uncle Sam is one of "the men" , Left-Wing ideology is about standing up to the man by replacing the "man" with Rosie O Donnell. ...and for a reference, conservatism is about not giving a phuck that you are being kept down by the man because you wouldn't be able to make it without him and Right-Wing ideology is about "the man" being "the man".