Mohammed could not refute the criticism of the Jewish sages, so decided instead to claim that God himself had revealed the truth to him, thus removing any justified attempt at criticism - a condition that can be perceived as severe weakness, but also as a way of simplifying the process against non-muslim "infidels".
Mohammed's declaration that "I'm right, you're wrong", set the preferences of how the Muslim world in the future should respond to criticism against himself and Islam. This is extremely noticeable in the Iranian constitution which prohibits any criticism against the "identity, legality and democracy" of the state.
Any criticism of Mohammed and Islam among Palestinians is also in most cases refuted, comparable with reactions against criticism of Jewish or Christian orthodoxy.
These arrogant, narrow-minded and timorous people vested in theological power positions, have been permitted to manipulate man's inherited feelings of right and wrong. Creeds of co-educated elitist sectarianism within all the world religions have built higher and higher walls between peoples.