…you miss the point. Which is that the complexity of the brain is sufficient to permit infinite behavioural variation. Therefore human behaviour can’t be studied in the way that you suggest.
It’s free will versus determinism. A philosophical question. If you believe that human behaviour is deterministic, then you can justify an approach such as yours. I’m sorry to say, I do not believe you’re ever going to get anywhere. There is free will. That means every choice is a new one and can potentially be made in an infinite variety of different ways. Human behaviour is, on a macro level, chaos. You propose to plunge down a rabbit hole.