I mean that would mean I believe that they’re imperialists supporting the case of white supremacy - I don’t think it’s too much of a stretch to claim that most USA supported conflicts have the purpose of benefitting the western world, which is based on white supremacy - and most likely are either politicaly illiterate and are unaware (willingly or by ignorance) of what USA is doing, or are sociopaths. They’re not tankies by virtue of not being pro post soviet dictatorships, but when it comes to the callousness towards loss of innocent human lives, they’re uh… Pretty bad. I’m not making a comparison though, I feel that’s like asking which of two shits stinks worse, and we can clearly see that both defecators had varied and distinctive diets.
And honestly speaking I’m not sure myself if “tankie” should apply to China, seeing how most of their bad shit happend internally with the notable exceptions of Taiwan and Hong Kong, which are a stretch. There is a distinctive difference between Russia and China, despite both belonging to same political alliance and both have a dictatorial leaderships. Hating west/USA and loving either of them would make one a campist, but I’m not sure about that qualifyng as tankie. Naturally, most campists support both, so by that definition it would make them tankies.
While your definition does describe tankies as well, I always understood it to be a derogatory term for the general authoritarian communist/pseudo-communist block more so than applying to all national supermacists.