Sorry Doug,
but you are way overreacting on this racism-thing. Chill a little and see the movie from the directors perspective:
The plot is about an american ex-soldier learning the "Way of the Samurai", and changes sides from the profit-based side of the americans to the honorous side of the Samurai warriors.
So now try to put this in a movie! Of course we all know it's impossible to learn kendo, iai-do and everything else in just 6 months, put how should a live-long learning process fit into the plot of a 40 year old soldier?
You might notice some other US commercial movies around trying to bend history a little:
U-571: The german Enigma machine and code-books were captured by UK troops, no single american was involved.
Men of Honor: Carl Brashear did not just fly thru a navy-career but worked several years very hard to become a navy-diver and no "noble white man" was around to help him.
Just some hints
Patrick