I'm not sure this can be proven one way or the other.
You can dedicate your focus into deeply understanding the causes of your own experiences, which requires significant opening up of what was previously unconscious in you. Eventually it will become more and more apparent that causality is traceable and always involves intentions and decisions that have had the capacity to manifest what had previously been labelled as 'accidents'. We can prove it to ourselves and it is fairly simple to apply in the context of physics equations.
I don't always agree with you or anyone for that matter, but I wish we had more people sort of like you who take the time to go into these details in an honest and critical manner. This subject deserves a lot more attention and I appreciate you for adding to the conversation! :)
Thankyou! Everyone has their own experiences, conclusions and desires - so we all interpret things a bit differently, but neutrality can be achieved enough to see things in an unbiased and open minded way in most cases.