A good point, but while we have no record of Jesus taking up arms to promote Christianity, his brothers the Essenes certainly did, and much of Christianity's spread through the millenia has been at the point of a spear, sword, or gun, despite the underground tradition and early persecution being played up.

If the Inquisition was betraying the Christian tradition, why was the current pope promoted from that very office? I don't know much about papal proclamations, but has the Vatican denounced the Conquistadors and Franciscan missionaries who decimated the new world in order to make it habitable for Christians? Were the Crusades ever officially declared to have betrayed the Christian tradition?

I grant that Mohammed taking up the sword does make some difference, but it does not seem all that huge compared to the Greeks and Romans doing the same thing on much larger scales. or the Puritans and other Protestants. or the slavers who used the absence of any condemnation against owning fellow humans to justify their atrocities.

The practical consequences in the end seem rather similar, millions dead over disagreements about what a specific collection of books says, with most doing the killing not even around to witness the books being written or speaking the languages the books were written in, making all the killing all that much more absurd.