Guess which book the following quotes came from?
"But if [a girl wasn't a virgin on her wedding night] and evidence of the girl's virginity is not found, they shall bring the girl to the entrance of her father’s house and there her townsman shall stone her to death, because she committed a crime against God’s people by her unchasteness in her father's house. Thus shall you purge the evil from your midst."
"Anyone arrogant enough to reject the verdict of the [holy man] who represents God must be put to death. Such evil must be purged."
"Anyone who blasphemes God’s name must be stoned to death by the whole community of [believers]."
"If your own full brother, or your son or daughter, or your beloved wife, or you intimate friend, entices you secretly to serve other gods, whom you and your fathers have not known, gods of any other nations, near at hand or far away, from one end of the earth to the other: do not yield to him or listen to him, nor look with pity upon him, to spare or shield him, but kill him. Your hand shall be the first raised to slay him; the rest of the people shall join in with you."
Decrying Islam while ignoring Christianity's history of cruelty and violence is intellectually bankrupt. The only reason Christianity slowed its violent ways is a century of intellectual thought emphasising reason over faith and the ending of the Church's influence over politics.