2) You seem to be promoting the idea that there is some inevitable transformation here, ignoring the fact that it took people acting from within and outside of Christianity, to moderate it
3) again, Islam's origins are tied into a religious leader who was as much war hero and statesman, as he was a prophet. There are even religiously codified systems within Islam on how to declare and conduct war, navel campaigns, rules and limitations of citizenship, etc
Obviously Christianity did get involved with politics later on (and more than it's share of violence), but such was not central to it's origins or the actions of it's founder. So yes, one s definitely more inherently violent than the other, but that does not mean tat all muslims are violent. They are free to reject such notions as many do everyday.
The problem is, many more do not