The extremely frustrating thing about this current instantiation of the postmodern critical approach is that EVERYTHING is problematic. By it's own logic, by the only logic that makes any of these arguments stand... the whole point is that ALL "structures" and "narratives" (in other words "ideas") are problematic -- by their very nature, in a multitude of ways. Problematic doesn't mean "immoral", it means "not the objective, absolute truth."

So -- Yes, virtually any element of US history is problematic. So is every concept from every culture/nation that came before it.

And even if we recede to this newspeak version of "problematic" as meaning "immoral" (in one way or another)... it's a completely facile exercise to see that every human society has struggled and/or been oppressed throughout history. So the unerring tendency for the current wave of critical postmodern-inspired social rhetoric to focus on one set of targets rings extremely hollow. "US History is problematic" (and awful and deeply shameful and requires this raft of policy prescriptions I like, etc)... but god forbid you try to discuss extant social structures or historical conflicts in Africa.