It's true that Christian theology has alienation at its core. In the words of Milton, "man's first disobedience, and the Fruit of that Forbidden tree, whose mortal taste brought death into the world, and all our woe, with loss of Eden". And it has produced great art, but you can still go back to torridon's critique above. This is how God set things up, so that we would fail. If I did that to my child, social services might make an emergency visit. It's not alienation, but sadism.