The fundamental difference is who is in control, and for what purpose.

American spyware is controlled by corporations, and is all about selling you shit you don't need.

Chinese (and Russian) spyware is--apparently--controlled rather directly by their respective governments, and is being used to suppress democracy and increase polarization in the US and EU.

I don't like any spyware. But the latter category--spyware that's functionally state-sponsored--is clearly more immediately dangerous. The former is more like a slow-growing cancer.