"Darwinism" is a tool of the anti-religious left, eh?
Can you then explain why the left clung to non-Darwinian, principally Lamarkian, versions of evolution for most of the last hundred and fifty years (and many still do so)?
If Darwinism was so suitable for atheistic leftists, then why, for instance, would Stalin send Darwinian/Mendelian geneticists to the gulags and allow a neo-Larmakian kook like Lysenko to run (and ruin) soviet science and agriculture for decades?
He'd have to answer that for himself.