Damned Christians

[The Valkyrie]

If they believe they are Christians, who are you to say otherwise?

And what of non-believers and different-believers who behave in a "Christ-like manner"?  You don't get to claim them as honorary Christians on the basis of their behaviour.

The bottom line is that correlation between religious belief and behaviour is extremely inconsistent, so it's unlikely that belief is the primary cause of laudable behaviour.  More likely it's basic human empathy at the core, with religion playing a peripheral role primarily as an inspiration.

Behaving in a Christ-like manner, is what makes a person a Christian.

Things like wandering the desert with 12 dudes, resurrecting the dead, and getting crucified?