I'll start off with a simple yet relevant quote from Dr. Fred Schwarz...
"If one believes that mankind is created by a purposeless and accidental arrangement of atoms and molecules which has resulted from evolution during billions of years, why should it be such a tragedy if that particular molecule arrangement ceases to exist? Maybe in billions of years another accidental arrangement will produce a similar or even an improved brand of consciousness."
This post really deals less directly with evolution and more with existentialism and philosophy. But Do you understand what that means? If evolution is true then why do we get so upset when one set of molecules ceases to be. Why do we cry at funerals? What is emotion but molecules arranged in certain patterns? What does it all even matter when life is purposeless in the first place? Life is meaningless. We as beings which exist through accident and chance cannot give it purpose because we do not hold the power of purpose. Meaninglessness cannot create meaning.
This is one reason why the philosophy behind evolution has no legs to stand on. Friedrich Nietzsche had it right, if God is dead, than hope is dead too. If God is dead then man is God, if man is God then all hope is lost. Why do some praise Nietzsche but at the same time attempt to assign meaning to the universe?