Ok God is a shitty parent then. Parents who love their children don't let them suffer or starve or kill each other. You could ask any parent in Japan right now that lost a child in the earthquake if they had the power to stop the earthquake would they have and I guarantee they will say yes. God has the power to create a universe but can't stop an earthquake? If you're this supreme perfect being why create a world that has earthquakes in the first place.
You are making the questionable assumption that stopping that earth quake is what is best for the whole. Let's just go on a solar system scale. If you knew that causing that earthquake would result in the eventual creation of a technology that would stop the sun from expanding to envelope the earth or the technology to be able to evacuate the earth when that happens, would you cause the earthquake or would you let humanity as a whole die? It's kind of like the, "would you kill baby Hitler?" question. Sure you killed Hitler and saved millions of people, but now to the rest of the world you are a baby killing psychopath.
On a more realistic human scale I bet you have walked down the street in a city and been asked at one point or another if you had any change by a homeless person. If you did not give them change are you an asshole? You are letting them suffer and potentially die after all. What if you could give all of those people change every time they ask or you could donate the entire sum to a homeless shelter that would benefit all of them more than giving each individual a small amount of change?
There's also something to be said for God probably not viewing death the same as we do. We view death very negatively (at least most cultures do). I believe it to be more of a welcome home from God's perspective. A life of suffering is also a blink of the eye when measured against an eternity of bliss.