Part of this is the condescending attitude liberal westerners have towards Asians - who are seen a small, tiny-boned and somehow vulnerable against us big tough Yanks. I saw this throughout the Viet Nam War. Of course, all of these people are tough as boot leather and have deeply ingrained sexual sadism in their various cultures.
Liberals are the biggest pushers of the "white man's burden" in history. We're supposed to divest ourselves of any and all traditional/supernaturalist beliefs so we can protect the traditional/supernaturalist beliefs of "indigenous pipples" (and moslems).
Liberals are terrorists when it comes to rednecks who reject Darwin but if someone were to try to teach Darwinism to an Eskimo he'd be at the World Court on charges of cultural genocide within about ten minutes. After all, Darwin is a dead white European male and Western science and rationalism are alien and foreign to the sweet little child-like dears who actually belong on this planet.
To balance things out, however, I would like to note that there was at one time an "anti-Japanese" ideology among the far-Left in Japan that makes American Leftist self-hatred seem small by comparison. They actually considered being Japanese as inherently evil and irreformable, and there was nothing to do but die out. There was a similar far Left self-hatred in Germany that actually supported (or perhaps still supports) America and Israel.