I am an American and I make a very conscious effort to appreciate social and political nuances. And I go out of my way to point out nuances to others who, in my opinion, oversimplify their statements. It could be argued that the expression of stereotyping Americans as lacking nuance, itself lacks nuance. I believe really most people are similar in that we have our biases, differences in context and experiences. We can all try our best to be as nuanced as possible.