No no it's not. I really can't believe I'm gonna say this but the only way this stops is a full ban of Muslims and a round up and deportation. Brutal, unpopular and unrealistic, yeah probably but I just don't see how they can stop it otherwise
You can't stop it, only contain it...ever. It's been that way for millennia.
Ban Muslims? Not possible. That's like saying "let's ban homicidal maniacs" or "radical racists".
You can't tell one by looking anymore than you can tell a Christian by looking. Radical ones of any religion or creed are just going to pretend to be something else until they unleash their mayhem. Ban any of them and you are just pouring gasoline on the fire.