In France, the police kill 5.5 people per 10 million people per year: https://en.wikipedia.org/wiki/Killings_by_law_enforcement._R...
In other words, US police kill 4.5x more white people, than French police kill anyone. But you are absolutely right (despite the cop responsible being charged with homicide) - in one case the guilt is collective, in the other, it's just lone individuals, and no patterns can or should be perceived.
As a bonus, in that killings by law enforcement wikipedia table, there are many countries higher than France. But with a few notable exceptions (the US being one), those killings seldom provoke ethnic riots, despite being much more numerous. So what makes the killings in France so much more salient?