@admitsWrongIfProven The idea of a singular base cause for anything is a myth that just doesnt add up to reality.
There are major share holders int he responsibility for an event, a major watershed landmarks that mark some turning point. To to try to describe a singular point as the "fault" will have you failing at life every single time :) In truth the "fault" for something is an infinite string of events going back in time and following many different paths. Changing any number of events can steer the course to somewhere new and avoid some undesired event, no one of which is the singular "fault" on its own.
Hitler is often seen as the person we blame for the holocaust.. But we could also say his mother was to blame for having him as a child or raising him with the values he happened to have, or maybe his father, or grandparents, or maybe it was that bully in highschool that beat him up and he never got over.