Don't they deserve a little extra patience as they come to understand the true nature of evil in the world and Christ's solution to it?
It's attitudes like yours that chase some folks away from Christ and Christianity.
As Gandhi reportedly said (I paraphrase), "It's not Christ I have a problem with, it's Christians."
I think what Charles meant was that all other avenues to discover why the world is the way it is are futile. For those who are growing in faith, the Spirit will provide guidance, discernment, and point to answers found in Scripture. We are all growing and learning, and true wisdom only comes from Him.