He doesn't matter.
His inaccuracy in the role of mutation/natural selection doesn't matter.
Whether he recanted (he didn't) on his death bed doesn't matter.
Whether he ate babies and drank the blood of virgins does not matter.
The idea is what matters. Even if the man who first proposed it later thought they had unleashed terrible evil upon the world it does not matter. The idea is what matters.
I can't think of a single creationist argument that at some point doesn't cast aspersions upon Charles Darwin at some point or another. I'm just at a loss as to why people are still using such a ridiculous ploy!
It's like defending why people used to think the world is flat. I can't believe that out of all the sea-faring nations in the world no one ever bothered to just look at the horizon. YOU CAN SEE THE CURVE OF THE EARTH just look at the horizon.
People, look at the horizon!!
Also... Check this Out!!