First, Vox day weighs in with his thoughts on the matter...
The problem with this reasoning is that it is fundamentally at odds with the very heart of Christianity. Christianity does not postulate that the world is a good place. Jesus repeatedly declared that the world hated him and it would hate those who loved him. Christianity does not claim that God is presently in control of events; when Satan offered Jesus all the kingdoms of the world, Jesus rejected the offer but did not claim that it was spurious. And, indeed, Jesus twice spoke of "the prince of this world" as a being who was coming to kill him but would ultimately be driven out by Jesus' death.
Christianity does not have a problem of evil because it requires evil for the great historical event celebrated yesterday to have any meaning at all. Just as I wrote last week that the Crucifixion and Resurrection make no sense if man is not at risk of hell, they make no sense in a world that is not given over to evil. But if Christianity has no problem of evil, Christians most certainly have a problem with evil."
I would posit "the perils of free will" are part of the problem of understanding evil. Evil is typically an act that is committed. When one has free will over a wide variety of actions that one can perform, then the fallen state of man can easily be seen by some of the heinous acts that our fellow human beings commit.
Father Dwight Longenecker (who I link to on the right side of the page), had this to say recently about suffering...
"Suffering--as terrible as it is--therefore validates our existence. My suffering affirms my eternal destiny. "This is so bad that it must point me to the good. My pain screams out to me and defines the joy I am lacking." How do I know I exist? How do I know my humanity? Because of my pain. The pleasures of this life are ephemeral, and may be produced within me through all sorts of illusory and self-induced phenomena. They are therefore untrustworthy as validation of my existence. But I do not bring pain onto myself. I avoid pain. Therefore, pain is the sensation that not only makes me believe in the existence of pleasure, but it also makes me believe in the existence of me. Pain validates me. Not "I think therefore I am" but "I scream therefore I am."
The cynical nihilist may still turn around and say, "That pleasure and reasonable answer you dream of is an illusion. It is wishful thinking. There is no such thing. Pleasure, like pain, is simply an animal sensation.--a primitive instinct of survival." To which we reply, "Then why do I rage against the unreasonableness of it all? Why not simply whimper and crouch down and lick my wounds and run from the pain like a beast? Instead I rage against God for allowing this suffering and I demand an answer."
There would be no such thing as thirst unless there were such a thing as water. Man could not reason unless there was such a thing as Reason. We could not ask questions if there were no such thing as answers. This is why Christianity puts suffering right at the heart of our faith. We do not avoid it. We do not come up with philosophical or theological theories. We do not say that suffering is an illusion and that we must simply rise above it. Instead we behold the cross. We preach Christ crucified."
So maybe there is a deeper meaning to pain and suffering and we are provided with only a brief glimpse on the overall historical timeline that accentuates the negative. With Christ's victory over death at the cross, we have the example of the empty tomb that there will be comfort and greater understanding in the end for those who seek Him.