The Atheist Who Rejects Moral Objectivism

An atheist who rejects moral objectivism could see our world suffering as a reason to be an atheist. A theist could think that while God is perfectly loving, he adopts other values that supersede valuing our immediate well-being. Without an objective moral standard of goodness, there doesn't seem to be any objective fact of the matter which standard of goodness God would adopt if he existed.