My answer to the question of why god doesn't take away suffering is that this would be taking away our freedom as human beings with free will. The only reason there is suffering in this world is because humans (Adam and Eve) were created with the POSSIBILITY of suffering by god, which they ACTUALIZED when they ate the forbidden fruit. When they chose to sin, the consequences were suffering. Suffering isn't punishment, it is a natural consequence of the choice to sin.
And think about this. If god takes away the suffering of one person, he must take away the suffering of everybody, regardless of whether or not they thank him for it, or deserve it. He can't just take away a little of the suffering, because where do you draw the line? This is like saying, "It's ok if five jews die in a holocaust but not six, or 50,000 but not 50,001." When you take the statement "a little" and apply it to real-life examples like this, you begin to see how absurd it is.
The reason people often equate evolution with atheism is because if life came about by chance, then there was no need for an outside creator to intervene, and if there is no outside creator, then there are no morals, no universal truths, no right and wrong. Everybody's politically correct, everybody's views are just as good as somebody else's. Most evolutionists have no intention of breeding such a lawless school of thought, but it often inadvertently does.