I called him a groyper for a reason. It is first and foremost an online movement, which makes it less disciplined and looser than real-life movements.
Second, the person who self-described as "mommy to the groypers" is Philipino-American:
https://en.wikipedia.org/wiki/Michelle_Malkin
Third, you can look at any number of white nat accounts on twitter: Radio Genoa is the one I saw most recently, which are run by anonymous Asian men (usually SE Asian or Indian, Genoa is Cambodian for example), which talk about the fall of White civilisation due to the brown Islamic invasion.
A more complicated point is how the white nationalists are constantly redefining themselves and their projects. For example, white nationalists would have excluded, with murderous prejudice, Italians and Irish back in the early 20th C. Nobody quibbles with them being called white now. There is always a tension where they decide what part of White identity they are fighting for - is it the "Judeo-Christian" heritage, or is the "Judeo" part of that to be excised, is it Athens-Rome-Jerusalem, or is it pre-Christian paganism, is it the Enlightenment, or was that a step back, etc etc. And all this in the context of the internet where a global political language is now shared by a lot of online people, including staunch nationalists, in very different countries. Right-wing Hindutva activists communicate in the language of Pepe memes and *-"cels". Political and racial identities are being re-forged right now in unpredictable ways.