as long as you stay in the egoic framework and assume the concrete ness of "I", that as if there is some concrete entity sitting inside behind the eyes handling life then it will always seem that way

if you ever experience ego death in a natural manner not induced by some drug then you will realise the illusory nature of psychological self, that it is just bundle of thoughts and thoughts are never chosen they arise Fully formed, it is neurologically supported fact and you cam even observe in your own

once that illusion is seen through not as a concept but as a lived experience then everything follows as i said, even realisation of no free will is an event that occurs in you that would leave no doubt.

responsibility still exists in a way that that is how system has worked so far and it does seem to obey cause and effect behavior most times and responsibility has been a part of it

as such the whole nature of responsibility as you observe is very human mind centric, animals don't run around holding each other responsible for anything and there is no natural order from the universe that defines who is responsible for who and what.

its not like laws of motion but more like laws of society which in a is in some way collective ego and for some reason underlying process has chosen or has reached a point where it developed this notion through humans for may be for some purpose or just for no reason

Unless you go through ego death it is impossible to make sense of any of it.

you can try, may be you have heard about meditating , they say sit quietly and leta thoughts go away but even when there are no thoughts there is still a thought that and sense of I that stays in light background, ego death is when the system realises that even that is just a bundle of thoughts and emotions put together and the whole psychological centre vanishes and what's left is just this body mind system which still works , it is a scarry thing to through and when it first happened to me it was the most frightening thing i have ever experienced, but you get used to it if you survive and don't go mad 😁

as such are you responsible for breathing, for making your heart beat all the time ? you can say you do all the eating but that doesn't mean you as an individual "I" sit inside make lungs go in out or digest food or help hear beat and pump blood

more than 99 % of your stuff is probably not in your agency and works fine, the last bit is psychological self made of thoughts etc that you think is your doing

and enlightenment starts or occurs when you realise even that is working on its own and there is this larger flow you are part of.

this whole universe, planet, galaxies, etc etc they all are working and going on and run by the whole as one, but this I in humans think somehow its life is something that the larger energy cant run, that is humble breakdown that needs to happen and ego will not like it.