I think god if he exists doesn't want us to annihilate each other. If he created us it means he wants us to survive.
People who look to justify their killing are worse than animals. They want to kill, they like it, but they need a way to calm their conscience. I piti them for not having some real goals in life, being unable to create anything, and unable to coexist with others.
I agree. God created us to be united as well. We are all His Daughters and Sons I highly believe as well and I don't think by killings never pleases Him just to justify which religion must be followed. I really don't see why people do that.