In the survivalist community, you have the whole gamut . No single educational level, occupation, income standard, race or political belief dominates. You can identify trends. Most survivalists are male, politically conservative, and leery of government. I think most of them have had some experience in their lives that shattered their preconceptions about the safety and immutability of daily life. Very many of them are veterans who have at least been out of the country and seen how gritty life can be. Some of these individuals have had experiences that made it impossible for them to ever go back to being the people they once were, and self sufficiency helps them find their place in life again. It gives them a sense of safety and continuity that they lost somewhere along the way. It helps them feel like they are in some modicum of control, and not just "dust in the wind."
Some people who follow self sufficiency are doing it because it's trendy right now. Others never gave it a thought until Hurricane Katrina came along, and a lot of the "preppers" started doing something because they watched Doomsday Preppers on television. I don't suppose it really matters how a person came to that path.
In general my experience has been that you find the same traits and personalities that you do in any group of people with common interests. There are good people who are pleasant to communicate with, argumentative people who are not happy unless they are trying to force others to accept their point of view, plain old outright mean and crazy people that I wouldn't want to come within a mile of, and everything in between.
I read new blogs every single day. If I find one that seems positive and interesting, then I visit frequently. If I run up on one that is disturbing, I don't launch into an impassioned appeal for them to change their ways, and I don't criticize their views. I just don't ever go back there. There are a lot of those. Survivalists have pretty strong views on what's right and wrong, and whatever their opinions on any issue they don't do a really good job of compromising. That makes it hard to have a rational discussion about anything contentious . I think it's better to just pass on by.
Everybody is entitled to their own views, but I think that if there really is some kind of collapse, some of the worst predators are going to be people from our own mindset. That's a disturbing thought.