how are we calculating violence?
like... if a majority christian country sends soldiers who are christian to a war...
are those deaths being counted as Christian violence?
when they're killing, are they all shouting something commiserate to allahu akbar?
unless a catholic, mainline protestant, or orthodox church blesses a war or unless the generals and soldiers are making the statement "in the name of the father, son, and holy ghost" as they torture and kill or something commiserate like using scripture to justify their acts, then it's not really on par with what Islamist do.
for example, the beginning of this video is christian violence based off the formula above.
the chattel slavery system was christian violence.
manifest destiny and the genocide of natives was christian violence.
it's not proper to say the world wars on regional conflicts done by secular western countries are christian violence. however, i will make a caveat - current ukraine and russia situation where the russian orthodox church came out and blessed the war - i would have to categorize that now as christian violence but no real church in the west would do that today.