I would agree with Our House here to a large extent on this one. If someone is to call themselves a Christian then the most we can somewhat confidently expect to take from this is that they at least claim to "follow" the teachings of Jesus Christ to some extent.
I must say I resent the arrogance of some members of the Christian community claiming to be "true" Christians and damning other dominations as unworthy and hellbound. This division among Christ's so called follower is very apparent here in Northern Ireland between the Protestant and Catholic communities with fundemental members of each claiming that the other side is so misguided as to be headed for eternal damnation. This attitude was particulary damaging politically during the troubles and these divisions, as you all know, incited sectarian bloodshed on a horrific scale.
The Evangelical Revd and former head of the DUP Ian Paisley was famous for inciting religous hatred between the communities and is a prime example of the dangers of mixing Religion and Politics.
http://en.wikipedia.org/wiki/Ian_Pai...ligious_career
Here he is heckling the POPE !!!
http://www.youtube.com/watch?v=-gdREMz_w9I