I hope you're asking in good faith. I'll try and give you a response as tl;dr as possible here.

Racism: hating people due to their ethnicity

Not racism: criticizing people (even of a single nationality or ethnicity) because of their politics

In the context of this article, most people in the comments are expressing privacy concerns over China controlling a larger percentage of the gaming market, and thus increasing the risk for demanding more data from the users installing that software on their machines. If anyone here were expressing racist concerns about this, people would be making disparaging remarks about yellow skin color or narrow eye shape, or something like that.

Furthermore, incorrectly identifying racism where there is none actually detracts from the actual anti-racist sentiment - in fact, the one I believe you hold - by muddying the definition of what is and isn't actually racism.