Thank you for both corrections, Brian, and my apologies for having misunderstood you.
I vaguely recall the MOI making noises about protecting the Americans here by placing further restrictions on Indonesian migrant workers, because some of them might join ISIS. (This was about a year ago, so maybe they’ve dropped it.) It’s not difficult to think of more compelling dangers to the well-being of foreigners here, especially if we are including SE Asian groups like Indonesians in our calculations.
If the “super-foreigner” regulations were being administered “by the book,” then local Gulenists would probably get a bunch of their people in. The imams of the mosques here are all ROC citizens, I think. But there are about a zillion Christian missionaries who would argue that they’ve contributed to Taiwan, for example, by leading anti-gay protests or whatever.
The big group I’m waiting to see rulings on is the university professors. There could be a hundred or so eligible naturalization candidates in theory.
Icon, your geography is a bit off. There are some (mostly Kazakh) Muslims living in Mongolia, but if they immigrate to East Asia, they’d be most likely to pick South Korea. There are Muslims all over China, but if you want to see a bunch of them in one place, the places to go would be Xinjiang (Uyghurs, Kazakhs) and Gansu / Ningxia (Hui people, i.e. Chinese-speaking Muslims). Taiwan has a tiny, but very old community of Hui descendants who don’t follow Islam anymore, but maintain fascinating customs such as not sacrificing pork to their ancestors.