2) It diminishes the character of God
I used to have a frequent visitor to my blog who went by the screen name, The Paleobabbler (let's call him, PB). PB had his own blog and described himself as a theistic evolutionist. In one post, when commenting on John 12:24, he said this about theistic evolution:
Jesus describes a process of change, the bringing about of something new. This can be applied to Christ himself, where his death on the cross changed everything and brought about new life - this alone should be ample reading for seeing the death in the John verse as intended. Evolution by natural selection is a process which involves death, but it does not stop there. The death is instrumental in bringing about change, in bringing about new life. It is an act of redemption, which is small in scale compared to Christ on the cross, yet large in scale with regards to cosmic history. Many scientifically minded theologians have noted that evolution is a cruciform process. It redeems death into new life. What better way for Christ to create?
According to PB, death is good. Death brings life. Death was the best way God could have used to create us. Unbelievable!
Do people really see beauty in death? Perhaps. Proverbs 8:36 says that all who hate God love death. If they love death, the theory of evolution has it in abundance. Evolution, of course, is a very slow, cruel process. Richard Dawkins describes nature this way:
The total amount of suffering per year in the natural world is beyond all decent contemplation. During the minute that it takes me to compose this sentence, thousands of animals are being eaten alive, many others are running for their lives whimpering with fear, others are slowly devoured from within by rasping parasites, thousands of all kinds are dying of starvation, thirst, and disease. It must be so. If there is ever a time of plenty, this very fact will automatically lead to an increase in population until the natural state of starvation and misery is restored.
An often spoken criticism used by atheists is, if God is good, why do bad things happen? To believe in evolution is to believe God intended the world to be full of death, disease, and suffering. It is saying that bad things happen because God wants them to happen and the bleak picture Dawkins paints of nature is exactly how God planned things to be. It would be a very capricious god who would waste billions of years of pain and extinction only to look back on everything he had made and describe it all as “very good” (Genesis 1:34). What's more, God would pause at the end of each day, look at what He had done, and each time would say it was good. So God describes creation as good, good, good, then very good. Theistic evolution says the creation was a billions-of-years long process of bad, bad, and more bad leading up to the moment where God says everything He had created was “very good.”
There is also the fact that God said He made everything in six days. Theistic evolutionists often claim God simply explained the creation in terms that an unscientific people could understand. In other words, God is a liar and an imbecile, who couldn't figure out how to explain “billions” to uneducated readers so He just said, “six days.”