Perpetuating the myth that we are somehow different, more human, better than the nazis, which is why we still think it can't happen here when it already is.
You want to see what the average Nazi looked like, look in the mirror. Reality is not this simple.
while this game did have some outrageous cartoony bits (magic jewish robots spring to mind), it also tossed some interesting insights at the player to this effect
the jimi hendrixesque american character makes a clear point to you that when the nazis occupied america and started ethnic cleansing, it was actually square-jawed all-american whites who eagerly did the dirty work