I would have to disagree by that which is proposed by Neal in his response to Ioannis' comments...
I don't think that Hwang's intention here is to make generalized statements about the 2 cultures represented in the play. Having been born and raised in the US, I doubt that Hwang was blind enough to make a sweeping statement such as suggested by Neal, that all Americans are inferior to the intelligence and cunning of the Chinese...
I do think however, that Hwang's play certainly acts to diametrically confront the traditional views touted by sexism and racism, and the way these two forces can act in unison. It does seem that Hwang seeks to confront certain stereotypes that he perceives to exist in the Western world. It is interesting to note that the original M. Butterfly opera figures very significantly in Hwang's play, even though it is set in Japan, while Hwang's action occurs in China. It is evident then, that Hwang is seeking to address the stereotype ascribed by the West to Asian cultures as a whole. That much then, I will agree to- Hwang tries to make clear the falsity of these American stereotypes. However, to say that he presents the Westerners in the play in such a way as to make them seem inferior to Asian cultures, does not resonate with my understanding of the play.