Now first of all I'm going to explain my definition of a fundamentalist so that you understand exactly what I'm talking about.
I see a fundamentalist as a member of a religion or group (any religion) who absolutely believes that their way is the only way and refuse to accept that somone else can have a different view to them.
Don't get me wrong, I respect and actually admire someone who can so fully believe in something and have unbending faith that they are right. I do not have a problem with that. My problem is with people who are so full of themselves and their beliefs that they will stop at nothing to ridicule other people's faith and beliefs (or lack thereof) and try to change their views whether they like it or not.
Here's a simplified example (very simplified). My favourite band is The Doors. I believe that they are one of the best bands ever. I also thoroughly dislike Eminem, I believe he has no talent at all. However, just because someone likes Eminem and doesn't like the Doors doesn't mean I am going to insult them for their taste and try and make them like the Doors instead. Also the other way round, it would **** me off if they trid to stop me liking the Doors and like Eminem instead.
It is my opinion that a person has their beliefs and if that is what they wish to believe, bloody well let them, What difference does it make to someone if someone believes different than them? It is their life, as long as they're not making human sacrifices or convincing idiots to kill themselves as part of their religion, why should it concern someone if they want to believe in Allah or Buddha or God or even their pet cat if they want to? As long as it isn't hurting anyone, let them do what the hell they want.
It's called free will, all people have it and have a right to have it. You can't have free will if someone is trying to force you to conform to what they believe just because they believe it is right. Everyone believed the world was flat at one point and you were a heretic if you said otherwise. They've since been proven wrong haven't they. Just because someone thinks they are right doesn't mean they are and it certainly doesn't give them the right to force that thinking on somone who believes differently.