There is a paradox in mass movements wherein a person or group of people will commit some terrible act, claim an association with a particular movement, and then people outside the movement will demand that the people inside of it disavow those who committed the terrible act.
It’s pretty typical, for instance, of Islam. The narrative goes like this: some terrorist group or individual terrorist does something terrible, and non-Muslims call upon Muslim leaders to disown or disavow the terrible acts and their perpetrators. There are a few problems with this response, whether the case is terrorism or not. Here are some.