It’s the only thing Muslims understand, but one of the problems is that Americans simply don’t react to things that way. We go to war reluctantly, and we respond firmly to provocation only after it has reached a point that cannot be ignored. This is not a bad trait, but the question is whether, if we wait until that point with Islam, it won’t be too late. The time to stop it would be now (no more Muslim immigration, expulsion of non-native Muslims and surveillance of native-born Muslims, for example), but we all know we’re not going to do that.
Forget the politicians. A local parking-lot reaction to Muslim aggression is more what I had in mind.