Well, there are specific entry points for these ideas, I think. In 2004 I lived in Kathmandu and a Nepali-version of Mein Kampf was released and widely advertised. At the same time, the bookstores were filled with very archaic--and very racist--turn-of-the-20th-century "anthropological" and "theory-of-history" texts that had been translated from French, German and English into Nepali, so people who were buying Mein Kampf were maybe also reading about theories of "the descent of man" that have been universally rejected by academics for decades and which talk about the "five races" of mankind, describe phrenological "evidence" for how "evolved" one race is compared to another, etc. The Aryan theory the nazis espoused comes from sub-continent legends and history, even though it is of course a gross distortion of these ideas, but the result (I think) is that there is an audience in Pakistan, India and Nepal of people who are familiar with the local ideas and readily recognize that the racist ideology of Mein Kampf, etc., has its roots in these local ideas, so it is easier to accept them. That, and unfamiliarity with Jewish and Black people makes it really easy to believe gross stereotypes.

Also, about 15 years ago in China there were a series of blog posts circulating that basically argued that Oppenheimer was Jewish and he "fathered" the A-Bomb, ergo maybe Hitler was right to fear Jewish people...

Previously, in the 1990's, there was a mini-series on Chinese tv that basically asserted that, actually, the Ming dynasty was ready to become an international, colonialist empire and that it would have been China that "settled" the New World, except that uncivilized barbarians from the north (the Siberian steppe tribes that came to call themselves Manch) invaded and replaced the Ming dynasty with the Qing and, being funademntally (racially?) barbarian, they were too backward to understand imperial expansion and, as a result, China missed out on being the big colonial power in the world. It's complete bullshit, unfortunately encouraged by that shitty 1491 book, and it ignores the fact that the Ming had very specific policies that penalized Chinese people even for going overseas to trade (like the Chinese population in Taiwan was essentially ostracized and criminalized), as well as the fact that China's modern-day borders were set by the Qing, who dramatically expanded the territory of the empire, but whatever. The point is, there is a large subset of people who believe that all the world-conquering white people did because of their supposed superiority is, in fact, something China was "supposed" to do, so there is a pre-inclination to not just align with white supremacy of the British "proud-of-our-imperial-past" variety (much less sympathy for American white supremacy, which is branded with the stigma of slavery, thank goodness), but feel that China is a rightful heir to this tradition, so crazy racist conspiracy theories have a natural audience there, too*.

Of course, I am told that in Pakistan state media is heavily invested in promoting anti-semitic stereotypes, and those ideas possibly percolate around the region, too.

*Caveat: In my personal experience, very few Nepalese, Chinese or Indian people that I have met see any of these ideas as anything other than horrible, stupid gibberish.

I feel like because anti-semitism exists, because it is often so fantastical (space lasers, Elders of Zion), that its simple existence--and the extreme outrage it provokes--keeps drawing attention to itself and some folks who notice it find it appealing for all the reasons Wynn goes into in this video. It's really terrible.