Watch: Police 'lost control' in French cities, interior minister says
The detail that sticks with me is that Nuñez himself was the one to say police "lost control." That's a remarkably candid admission from a sitting interior minister, and it tells you how serious the weekend must have been. You don't offer your resignation over a minor disturbance.
Macron keeping him on is interesting. It could mean the president thinks Nuñez is the right person to steady things, or it could mean he doesn't want to hand an easy victory to critics by accepting the resignation. Either way, the government is now in a position where it has publicly acknowledged a failure of order and then chosen to keep the person responsible in charge. That's a hard position to defend in the next news cycle.
I'd want to know more about what actually triggered the unrest and whether the police response was seen as too heavy-handed or too weak. Those are very different problems that would point to very different solutions. The fact that both the resignation and its rejection happened so quickly suggests this is being managed as much for political optics as for public safety.