After reading TheArtists recent topic proposal I think that an explanation of the mainstream pro-evolution position is needed. I will try to be uncontroversial in that but if anyone on the evolution side objects to this characterisation (which is not intended to include fringe positions) please speak up.
1) Evolution is not an all-encompassing belief system, it is a scientific theory with a limited scope. In particular, it is not a source of moral or ethical values. There are many Christians on the pro-evolution side.
2) Science is the best way to learn about and understand the physical universe, both how it operates and its history. A well-established scientific theory should be accepted as a good approximation of the truth. (And no more than that - nobody on the mainstream pro-evolution side would claim that the current theory was absolutely correct in every little detail)
3) Evolution is a well-established scientific theory (this should be uncontroversial to anyone, since it is a clear fact)