I heard this perfect analogy from a minister friend of mine yesterday about Fundamentalism. It's like two people going to a bar and sitting and have some drinks together. Even though both may be drinking the same drinks and sitting together at the same bar sharing each other's company, one of the two is an alcoholic and the other is not. They may be doing the same things at the same place, each thinking they are like each other, but when one gets done with the whole drinking scene at the bar with him, he goes home to his life, and the other has nowhere else to go but to stay there with his diseased drinking. It's all he has to go to. He has nothing else but his drinking.
Not everyone who participates in a Fundamentalist group is actually a fundamentalist, the same way not everyone who sits at the bar is an alcoholic. But we treat alcoholism as a disease. We treat alcoholics as those who need treatment. I used to say that I am a former-fundamentalist, but now I recognize that in fact I never actually was one. Even though I was in a fundamentalist church, and even though I tried sincerely to believe, think, and behave as them as in my youth I imaged these were the people who had the answers as they were so self-assured in their beliefs, positive in everything they preached, I never could quite become them. I was not an alcoholic. I couldn't become who they were. I didn't have the disease. And so I left, getting away from what I saw as an unhealthy religious environment.
It is fundamentalism that is the disease, like alcoholism, and their particular beliefs and practices are created around supporting their disease. But not everyone who comes into their midst to have a drink with them is necessarily a fundamentalist themselves, the same way not everyone who drinks in a bar geared for alcoholics is an alcoholic themselves. But fundamentalism itself, like alcoholism, is a disease.