No, everyone isn't that way. I'm just talking about those who took advantage of this situation. If they'll do that when presented with the opportunity, what will they do when they're presented with a different kind of opportunity. For example, while I'd like to think they'd pass on home invasion, I can't assume that they would pass on a home invasion. Hope for the best, prepare for the worst.
This is all very difficult for for me, I like trusting people, I like thinking that I can help someone with a flat tire and they won't try to bash my head in and steal my car. Many people deserve help because they are in a situation not of their own making or choosing, these people deserve our empathy and assistance. The difficult part is sorting out who is the good guy and who is the bad guy. I suppose we'll know who the bad guys are when we hear our neighbors house getting busted up and see the perps coming to our door.