Hope,
Why is a belief in a creator God any more pernicious than a belief in evolution with no purpose or design behind it?
For two reasons.
First, evolution can no more be "pernicious" than gravity can be pernicious. It's a natural process that occurs without the need for it to be directed towards a pre-determined outcome.
Second, because if as you suggest there really is a god at the wheel then presumably he's responsible for fluffy kittens alright, but also for the everyday occurrences of countless creatures torn apart by predators, ridden with painful diseases, dying slow and agonising deaths from starvation, excess cold or heat etc. A god who for example steered evolution towards the African worm
Loa loa that bores through the human eye really
would be pernicious don't you think?