PS Evolution doesn't even propose randomness as the cause of speciation. Variability (along a multiplicity of dimension) is built into reproduction, and environmental pressures then act on that variability in very definite directions.
But the spontaneous start of evolution is either random or by design--there is no middle ground here. This is the point which evolutionists try to avoid. They want to discuss a theory already in motion within the boundaries of micro evolution rather than the probability of the theory in all aspects.
