There is so much good in the worst of us, and so much bad in the best of us, that it ill behooves any of us to find fault with the rest of us. James Truslow Adams
Violence is sadly a part of human nature. It is not the only part of human nature, but it's definitely there.
A government is the attempt by humans to arrive at a mutually agreeable way to protect the rights and safety of the many while allowing for individual freedom. It is always an uneasy peace and can erupt into violent protest which can and has developed into revolution - throwing over an existing power and replacing it with another.
The French are not any more violent than the rest of mankind. They are just in the spotlight at the moment.