I guess it’s human nature to try to find someone to blame when unpleasant things happen. We don’t want to shoulder the guilt all by ourselves. Maybe we believe it will be easier to put up with trouble, loss, failure, and all those other unpleasant things if we can dump it on somebody else.
I’ve always tried to be philosophical about such things, and truly believe that, often, things just happen and they’re nobody’s fault. There isn’t always an explanation, or a reason for disasters except, perhaps, for just plain bad luck that isn’t anybody’s fault.