Its going to be very difficult to argue a point and not get personal where relegion is involved though. So many people really do hold their beliefs to extreme levels and anyone arguing against it will seem to be personally attacking them.
It shouldn't be this way but unfortunately it is. If people have a differernce of opinion in, say, polictics, they are actively encouraged to discuss/argue there side of the coin until they come to a agreement (well supposed to). However, once relegion is mentioned, all of a sudden your not allowed to discuss/argue your side becuse its "disrespectful" to the others beliefs.