They are unassimilable and immiscible without rapid degeneracy.
And repulsion, or the attempt of everything to exclude or disregard the unassimilable.
What we insisted on was that it is unwise to maltreat the Japanese on the surmise that they are unassimilable.
It is a one-sided argument to maintain that because of that the Chinese are unassimilable.
They assume that the Japanese are unassimilable and conclude that, therefore, they should not be given an opportunity to progress.