Agreed. Unless you have full control over the production chain to fully produce a device, you are subject to the whims and desires of those who preside over such technological feats that we take for granted in our daily lives.
To the original point, it's safe to say that highlighting a nationality with regards to trust is baseless and without merit, as would be for any other topic (men/women from x are y, z food is better here, etc..). Real life is much more complicated and nuanced past nationalities. Some might call it FUD (fear, uncertainty and doubt) but there's always a deeper rationale at the individual level as well.
