The ways of controlling to them who spread extreme terrorism by claiming non possession demands from neighbour.

The world is so genius and increased its IQ power by vast experiences and mental practices since many centuries. Plz tell me what are the ways which can change a person or a group's mind towards mankind, humiliation,humbleness who has just thought to spread terrorism,panic and demonstration of his own brother,partner or fellow. He knows its wrong what he is doing.he knows he only gets dead bodies or loss from his enemy and his own. He know he will be defeated. He knows the history is his best teacher. He knows it spoils his future and his next generation's future. He knows his past,present and future is unstable until he stops it. He knows he would have to raise hand first toward his enemy for friendship one day. He knows he loses god's faith. He knows he would feel guilty. STILL WHY??