If you’re saying authoritarianism can be explained by non-whiteness…

I’m not saying that. I’m saying that “whiteness” as a construct is a tool of capitalism/imperialism/colonialism. And that the Global North similarly tends to attribute “authoritarianism” to whichever states are acting insufficiently subservient to their imperialist interests at any given moment. And I’m saying that these two constructs have a tendency to be aligned with each other, because they’re both tools of capitalism/imperialism/colonialism.

But also saying that anyone opposing NATO become ipso facto non-white because it’s “an ever-shifting construct”…

Whiteness is as old as European colonialism, and has been baked into capitalism—which began in Europe—from the start. Whiteness has been twisted into all sorts of nonsensical logic pretzels. See for example honorary Aryans honorary whites. It has no explanatory power because it is simply a tool of power. Even the Irish, Italian, and other Catholic European immigrants have suffered it within our own country. As Josep Borrell has more-or-less said, the imperial core is the “garden”, and the rest of the world is the “jungle.” Imperialism uses race—which again is made-up bullshit—as a tool to justify their imperialism.

You’re saying “authoritarianism = non-whiteness = opposition to the NATO bloc”

I’m not saying that, but the NATO bloc often seems to imply it.