I live in Paris and was spending the night in the middle of the hot zone. I was a few hundred meters from the Bataclan but fortunately the area I was in was spared. I tried to get a Uber but they were unavailable, "State of emergency, please stay home", the app said. I took a city bike home, rode about 10kms and barely saw anyone in the streets all the way home. It was really, really weird. I'm awfully sad that people can be proud of having killed a hundred innocents. I'm not afraid, I'm just terribly sad. Please stop this pointless killing.
You are trying to rationalize with people who are irrational. They don't reconcile. It sucks. It's depressing.
Terrorism is usually a rational act. It is terrible, but it has political goals. This, for instance, may be aimed at ending the European involvement in Syria and their taking in refugees.
A lot of the time, terrorism is carried out by irrational people, but orchestrated by slightly more rational people. The people willing to risk their lives are not the same people that are convincing others to risk their lives. After all, if people like Sayyid Qutb actually risked his life, he wouldn't be able to convince other idiots to die.
Egyptian here, actually Qutb risked his life and lost it for his "cause" and there's a lot of controversy surrounding this issue and it's a recurrent hot topic in political discussions here that his unlawful detention by the military authorities and the subsequent execution might have resulted in his radicalization and him espousing more extremist views of jihadism and political violence to effect social change in the nation because he was very aware of the fact at the time that he would be executed at any point so he had maybe a "fuck it" moment and decided to screw the world he would depart involuntarily by leaving his vile and despicable writing behind as a vendetta