There is so much in their holy books that explains the evil of Islam. You picked up on a particularily telling verse - Allah said, A prophet must slaughter before collecting captives. A slaughtered enemy is driven from the land. Muhammad, you craved the desires of this world, its goods and the ransom captives would bring. But Allah desires killing them to manifest the religion.
Right. A religion of peace.
Worth repeating.
I challenge any Muslim out there to explain this verse.