The genetic makeup of a superior asian race must necessarily mean a mixed race. She is the product of the admixture of the white race and of the asian race, which must have taken at least a few centuries in the making to produce. In my estimate, Japanese is the only superior asian race currently.  She is the earliest to recognize the need for racial improvement, starting since Meiji Restoration, during which white Western males were encouraged and even remunerated to impregnate Japanese women in a collective national and racial-conscious effort to improve the Japanese stock; and Japan’s subsequent progress in culture, technology, science, and military demonstrates its program’s success.  Even to this day, the only culture that vies with the west in terms of sophistication and general index of development, is Japanese, and it cannot be stressed enough that such superior culture does not simply happen as if it were a happenstance, but is the result of the deliberate genetic engineering on the part of the Japanese to improve herself.

As the most direct verification of its superiority, Japan is the only non-western nation that militarily colonized large swath of the Asian continent in modern times.

Culture is the product of humans, and humans are nothing but the manifestations of the will of their genes, so inferior genes will produce inferior culture, qua inferior races, and superior genes will produce superior cultures qua superior races. The negroes, the Chinese, the hispanics are such inferior races, to demonstrate a few examples.  

On the other hand, and fortunately, or unfortunately, this superiority is not irreversible, or one even can say, racial inferiority is not a sickness unto death.  Those who are superior but not vigilant can and will in time lose their edge.  And it’s also quite possible—and it has happened throughout history—that inferior races can through interbreeding achieve superiority.  As the Japanese did and is still doing since the 19th century, other Asians, and most notably the Chinese and Koreans, are also awoken to the need to improve their inferior Asian gene pool by absorbing the vitality of the white race through interracial breeding.  More and more Chinese and Korean women are consciously breeding with white males in an effort to create a better, improved Asiatic race.  This is a positive development. However, their efforts are not without obstacles.  Mass resentment, and even hatred against progress can deter and even retrograde whatever small improvement is made. And if opposition is successful, then Chinese and Koreans will be doomed to forever play the role of the inferior asian race and continue to be dominated by the superior genetics that reside in Japanese and Europeans.  General ignorance and bad education will even deter the intentional promulgation of the superior genetics of the conquerors through mass rape of women of those inferior races, as if those conquerors were doing a disfavor to the conquered when it’s merely acting as the agent of nature–even the will of God—to eliminate the inferior genes of the defeated males, and pass down the superior conquering genes through subjugated females.

If anything, women of the inferior race need to thank men of the superior race, men of the conquering and dominant race, for the generous deeds of propagating their genetics to them.

The degeneration of the superior race is a much more complicated issue. Complacency, decadence (especially sexual), and moral degeneracy will destroy and eradicate any trace of the superior races.  Race-mixing, however beneficial to the inferior races, brings no improving fruition to the superior race itself.  Many conquerors in history were simply mixed out of existence, as that did happen to the Jurchens in Northern Song Dynasty, the Normans in England, and the Mongols in Southern Song Dynasty.  

On the one hand it is the moral obligation, and even the divine right, of the superior race to propagate their genes to the inferior races, it is also necessary that the superior race must preserve its own race from being mixed out of existence.  The Jurchens in Southern Song Dynasty learned their lesson, and when the descendants of Jurchen people, the Manchus, once again conquered China, after the demise of Ming Dynasty, interracial marriages between Manchus and Han Chinese were strictly forbidden; but, a Manchu prince can take on as many Han Chinese concubines as he wished, but those children were not considered legitimate, as they were born of mothers of an inferior race, and only pure Manchu children were recognized as the rightful heir to Manchu bloodline.

The same can and should be done for the white race.

While a white man can and definitely should breed as many inferior asian females as he desired, he should also have a pure-bred white wife to continue his lineage so that while the inferior asian race can benefit from the intake of superior genetics, the white race can also preserve its own bloodline without sacrificing its own existence for the greater good of humanity.