I don't think you can separate the two, Theland.
It's getting into a recognised logical fallacy called 'The no true Scotsman' fallacy, which is by Antony Flew. (You might know him because in 2004 he expressed deist views after years of athiesm, and consequently has become the lazy Christian's poster boy for showing even clever people can believe in God (by lazy I mean the fact that it's a) one person, so how much weight should be accorded to it b) most of 'em don't even understand the difference between deism and theism and c) it's just parrotted, not that it doesn't prove that even clever people can believe in God)
Anyway, the fallacy goes as follows (changed from Scotsman to Christians, for clarity): Alan does something, percieved as bad. Ben observes that no Christian would do what Alan has done. Then Carl, who is a Christian does what Alan does. This proves Ben is wrong that no Christian would do it, but rather than accept that, Ben merely says, 'Ah, but no *true* Christian would do what Alan and Ben did.'
You cannot continually dissassociate all Christians who do something wrong from Christianity, and claim it is unaffected by it - even if you maintain Christianity the message is distinct from Christianity the relgion. Somewhere along the line, you have to accept there is a causal relationship between these two factors.