As a nation that touts democracy as one of its chief values, the US has always suffered from a slow learning curve on nationalistic self-determination and democratic development in Asia, particularly in Taiwan. As T.S. Eliot said in his poem The Hollow Men: “Between the idea and the reality, between the motion and the act, falls the shadow.”
Why? The quick and obvious excuse is that the US began as eurocentric. In its early, formative history, all settlements and subsequent colonies were on its east coast, and settlers and later immigrants came primarily from European nations, eg. England, France, Spain, Germany and the Netherlands.