In Ireland we used to have a violent police force. They often killed people. They were kind to the majority and abusive to the minority. They protected the government, not the people. It was just like France.
The people protested, for many years. They forced the government to disband the police. In 2001, a new peaceful police was created.
It worked very well. Today, Ireland is peaceful.
Change is possible.
Also kind of reach to imply that peace in Northern Ireland came from disbanding the RUC (although it was part of it)
I am over-simplifying, a lot. But I encourage you all to read more. The Irish struggle is a good modern example that the French should learn from.