>>/8429/
Now let's get to the point of this multi-post.

USA is ruled by vampires. Vampires are the lower end of pleiadans, born from the Silver Queen. That means they are white silver race, and this racial structure needs to be maintained in some way, even if we now have the Adaptive Yokai Humanoid racial framwork overall. So that's why this DNA variation, as it will be seen, has to be made functional again, it's the vampire recruitment base. Vampires are also yokais, very much so, there is no reason to not support them, from the perspective of Gensokyo.

With this understanding, the stability for white silver race DNA comes from literal immortals and their witches (a slightly more ethereal or less concentrated branch of the silver race), so any maneuver you'd want to perform could work, because it's magic.