I think Dafunkdoc's issue is that he's looking for an authentic, originary version of these religions, which is not clearly possible to find, and so he tries to construct an eisegetical, consistent system out of the particular founding texts. That's why his claims have internal coherence. For him, there is a legitimately original, and thus true Christianity, and same for Islam, and he is drawing a rigid line between those original versions and the practitioners who do not follow it. I don't see how this is possible to establish, since there's no such thing as pure eisegesis and since most of the relevant evidence is lost in time, but also because I don't believe there is any actual internal consistency to be found in any of the Jewish or Christian books, since they are compilations of texts that were written over a period of time by authors who themselves held fundamentally different views from each other. But that aside, more fundamentally, I don't think you can separate religion from practice. Even if Islamic texts specifically told Muslims to kill all non-Muslims, if most Muslims were doing no such thing, then it would be inaccurate to call Islam a murderous religion. There is no religion apart from the way its practiced at any particular time, because religion as an institution is much more than any particular interpretations of any particular set of scriptures.