I think this is a fair question.
If we take evolution as ultimate fact and truth, then one must ask the question: Why did God, who is said to be loving, merciful, gentle and good, design a world filled with death, killing, savagery and sin? Why not just design a perfect world, free from all of these heinous things? If God is all-powerful, as He is asserted to be, why design a world in which animals live and die, eat each other indiscriminately, and one where it is virtually impossible for any human being (an evolved primate) to even follow His moral laws and commands (due to the fact that they are contrary to our very designed nature)? Why design a world where in order for one to win, another must lose? Why would a good world be a world of 'survival of the fittest?' Where does agape love / charity fit into there?
Can someone shed some light onto this for me?
The world was not created in a state of perfection. Scripture does not support such a view. The world was created "very good." Let us dissect your question.
First:
Why did God, who is said to be loving, merciful, gentle and good, design a world filled with death, killing, savagery and sin? If God is all-powerful, as He is asserted to be, why design a world in which animals live and die, eat each other indiscriminately[?]
The first thing you should know is that sin should not be included in this list of supposed evil attributes. Sin is about morality, and science does not address morality.
Now, moving on to the question sans "sin." The answer (from me, at least) is is that
physical death, killing, and savagery are not inherently evil. Most people have this ingrained notion that death is always wrong/evil/bad. It makes sense. Humans are social creatures. When permanently deprived of someone they have a relationship with, strong feelings of sadness and loss will come to the surface. But this does not mean death is evil.
Imagine a world without death. Humans existing eternally, aging eternally. It wouldn't be a paradise. Humans have limited space and perspective. We are not ontologically equipped to deal with eternity. People would go crazy, memories would falter, and wars would be fought over extreme overpopulation. Physical death is the natural order until the universe is recreated.
The world was never created in a state of perfection. It was created "very good." I think a planet that can sustain life for 4.6 billion years is "very good," don't you? Sustaining life requires a system capable of doing so, and here life is kept in check by death and disease.
Spiritual death is the enemy of God, not physical death. That is why we still die physically even though Christ overcame death. It is why Adam and Eve had to eat food even before the Fall.
The remainder of your questions:
[Why design a world] where it is virtually impossible for any human being (an evolved primate) to even follow His moral laws and commands (due to the fact that they are contrary to our very designed nature)? Why design a world where in order for one to win, another must lose? Why would a good world be a world of 'survival of the fittest?' Where does agape love / charity fit into there?
Don't take this post to be an endorsement of wanton killing and unchecked plague-spreading.
Inherently, death and savagery are not evil. However, humans have a special place in the universe. We were created in the image of God to be like God. As creatures of the biological system that is Earth, we have instincts like every other creature. We have an innate desire to protect ourselves or those we hold dear and serve our own interests. We form "packs" and stick together.
But humans are also spiritual creatures, granted the ability by God to rise above our own instincts through reason and love. God gave us morality as well. The core of that morality is written on the hearts of all men. As we have a special place in the universe and dominion over all the Earth, so do we have a special responsibility placed on us by God. It is that morality which prohibits murder, and it is that morality which drives us to cure diseases that plague our populaces. We are commanded by God to hold all human life as sacred.
It can thus be argued that our nature is
not solely natural (and thus designed to make it hard to follow God's commands). Instead, humanity's nature is to
overcome its nature. We are transcendent creatures continually reforming ourselves. This stance is basically summed up in the
Irenaean theodicy.