The reason all these verses coincidentally sound like Christian concepts is because Mohammad was a plagiarist. He used the concept of a "one god" religion to gather men to his cause so he could wage war on his enemies.
Well, I don't know about Islam but my understanding that Islam is directly associated to jewish Tradition in that they are decedants of Abraham. But as you have stated most religions do tend to have followers, whom are willing to go out on killing sprees based on some belief they are serving that religion.
Then look athow many are willing to go out on some killing spree in the name of democracy, supposedly the individuals right of choice? Of course ya may be right about the slave thing, After all the Native American population turned out to make very poor slaves so they had to inport them. (besides the indentured servants from europe)