[Rusky]

In this case, "sin" doesn't quite mean "not being Christian enough." Other religions (and ethics in general) often advocate very similar behaviors, so it wouldn't be surprising to see a Christian who is more of a sinner than a non-Christian.

The argument is that violence comes when someone has convinced themselves that they are already righteous enough to override the sin inherent in the violence.

[AnimalMuppet]

I think it's more than that. It's when the logic of their position means that the violence is right. (In doing so, they usually go off the deep end even within the framework of their chosen ethic...)

[mcbutterbunz]

Or even that their lack of violence is wrong. Its the old "if youre not for me, then youre against me" view.