God created it all. He had no choice.

Everything in the world has an opposite.
Life and death
love and indifference.
heat , cold
left and right.
up and down.

Everything has to have an oposing force in order to maintain a balance.
Everyone seems to believe that a world without war, hate and indifference would be paradise.
Truth be told, a world without those things would be extremely crowded and love and the like would rule everything.
Nothing else would matter. There would be no opposition to that force to balance the world.

Besides, if God didn't think we needed it , it wouldn't exist.