Stump the Christian?

[Esquilax]

My point I was making is that evolution is not evidence against Christianity.

No, but it is evidence that christianity is not required. The complete lack of evidence for, and the impossibility of many of the claims in, the christian narrative, is the evidence against christianity.

It seems, however, crucial that evolution be true to attack Christianity. 

Nope. We don't need an alternative to point out that your claim is untrue; it just so happens that we have an alternative to large swathes of the creation narrative that is supported by all the facts.