It's going to be hard for me to get my point across, as I'm not really good at that sort of thing, but I'll try anyway.
People, especially on the internet, aren't very respectful of what others stand for. There is no party directly to blame, as the problem is with the individual. For some people their beliefs are so deeply rooted that they are almost brainwashed (for lack of a better word - don't take offense). Often, but certainly not always, this is due to their upbringing. I have no explanation why some people take every word against them so incredibly serious, but they do.
Perhaps it's a sign of insecurity, their beliefs being questioned. Then again it might not be; who knows?
As for me personally. I was very much like that when in puberty, an extremely annoying atheist (come on, you all know em from the internet!

). Luckily music for a large part made me reflect on myself, it made me realise that my attitude towards others was terrible.
These years I'm alot more acceptable of others interpretations, I accept others' views and beliefs. But not to the point where my own point of view changes, maybe at most it's sort of like "Hey, why not. Neither science nor religion has found the answer.".
Unfortunately there's still some things that get me angry sometimes. For instance the simple and complete refusal of some religious people to accept science (Bill O'reilly springs to mind). Sure, you might not agree with everything scientists have discovered (for the lack of a better word). Neither do I, but it can still bring us a lot of new insight, information and all that jazz.
Delete my post if I got carried away. I just love a good argument about Religion mostly, Dutch politics are too boring to think about anyway.