And, unfortunately, they need to because they have clearly been targeted by the jihadists.
In part, it's because the Muslim immigrants to France (and their progeny) have neither flourished nor assimilated
In part it's because, apparently, the security forces are not up to world class standards
In largest measure though is the fact that the French were anything but benign colonists and were viciously brutal in their reaction to the independence movements in their Muslim, North African colonies. People in that part of the world don't forgive blood debts for a very long time.
I do, though, wish them very well. None of the innocents being slaughtered deserve their fate