Stress

When people run into an obstacle or something just gives them a ton of stress, they do jump to conclusions. Why are people so stupid in this way, I just can't understand what they can achieve through this? Does it help them cope with their stress by coming up with conclusions to have something to blame. Is blaming someone or something that necessary every time something causes pain. As for myself I just stay on my path of worrying about nothing, the more you worry the more problematic the world becomes. Life is truly hard, I cope with it through worrying about nothing, yet so many just have to come up with a conclusion that would lead to the blaming of someone or something other than themselves.