The aim of Islam is to bring the world under Sharia law. Some, who call themselves moderates, want to do it peacefully and some want to do it with violence. The violent guys say that peaceful means are not going to bring any change. In the below video, British Muslim preaches that Da'wa is insufficient and Muslims need to attack the very root of all this problem i.e. law and democracy to replace it with Islam and make every one bow to Allah.