Let me try yet another moshol (#DejaVuAllOverAgain):
If somebody runs into traffic and gets killed, is he responsible for his own death?
His running into traffic is certainly the cause of his death. But if he was running away from somebody chasing him with a knife, then he is not responsible. If he is running to retrieve his Frisbee than he is.
But this distinction can only exist if one acknowledges that the driving (no pun intended) forces behind an action have influenced the action. If one insists that anyone who hasn’t actually carried out an action is entirely blameless, what their motivation was ceases to be relevant.