The Protestant Reformers advertised themselves a return to the First Century Church. Wahabbism likewise is supposed to be a return to the Islam of Mohammed, and ISIS to the Arab caliphates of the First Islamic Century. The difference between the ideas of the Reformers is the difference between the Christians of the first century and the Muslims of the first century of Islam, between peaceful preachers and warrior bands.
The real problem is the difference in the two founders. Muhammad is the paradigm for the deception, violence, sensuality that characterize “originalist” Islam. Jesus is the paradigm for the unselfish love that seeks redemption and reconciliation and peace with God and with each other. “Originalist” Christianity. You get whatever you build on as your foundation. There is no way to reform Islam, except for them to cease their fight with Jesus and become His followers instead of His enemies.
Peace,
SR