Without theism there is no atheism. Without love there is no hate. Without good there is no evil. Without light there is no dark. Without positive there is no negative. Freewill determines one's polarity of these things.
God is everything from Alpha and Omega, first and last beginning and end, origin and fulfillment, A to Z,.-Revelation 22:13.
you are absolutely right about that, theirs always two side of a coin, took me some months to really understand this, we always Call God the good God, and many people thinks everything bad is the Devils handwork. but with free i got to understand that we are the real cause of our ad and good.