Wrong. The #1 problem is that we, as a nation, tend to value "being nice" over "doing what's right." It affects us everywhere, not just in foreign policy.
A second major problem is that we as a nation are too impatient, too busy, and often too lazy, to learn the facts, and to shoulder responsibilities ourselves ... it's much easier to let activists and professional politicians do all of the heavy lifting. And then we complain when the screw up yet again.