Criticism and questioning were forbidden. When I did either of these, I was told: "Muslims cannot love the enemies of God, and those who do will get no mercy in hell." As a young woman, I visited a Christian friend in Cairo during Friday prayers, and we both heard the verbal attacks on Christians and Jews from the loudspeakers outside the mosque. They said: "May God destroy the infidels and the Jews, the enemies of God. We are not to befriend them or make treaties with them." We heard worshippers respond "Amen".
I'm sure the Christian friend felt the warmth of the Religion of PeaceTM.