Cold Steel:
1) It seems predicated on the assumption that there is no God, or intelligent designer.
Wrong. Evolution doesn't make an assumption one way or the other on the subject of God.
2) The idea that simple organisms can mutate into increasingly complex ones. I'd like to see some evidence this is possible. To think 1-cell organisms can mutate, without a great deal of outside help, into modern humans over a long period of time, is difficult for me to accept.
First off, you are somewhat correct. In a closed system, single-cell organisms cannot mutate without outside influence.
Here's a nice summary of your talking point.
https://www.youtube.com/watch?v=i3ShyXSHsbc&list=PLsmqeqKj7M-rZe1C9PUon8V-VQ1tZj5NF&index=8
One example of single-cell organisms changing to more complex multi-cellular organisms is during pregnancy. A fertilized egg is considered a single-cell organism. The cell then starts dividing during the development of the fetus. This isn't an example of "evolution" per se, however it is an example of how a single cell can change into a more complex organism.
3) That life and intelligence can evolve from a spontaneous action.
The "spontaneous life" question isn't one for the subject of evolution. It's one for the subject of abiogenesis. Both pertain to biology, however they are separate subjects. Evolution is the explanation of species evolving from a common ancestor. Abiogenesis is the study of how life began in the first place.