That's the grey area I'm talking about though. If China sends a missile into the US, it's shot down, but there is collateral damage, Americans will overwhelmingly consider China responsible. If a Chinese airline flies a regular route and is abruptly shot down, and the plane crashes into a populated area, Americans would hopefully consider their own government responsible.
The grey area I'm musing about is in the middle, and how some portion of the public might be sympathetic, how this might be destabilising, and what avenues the agitator might explore.