In all the cases you listed, the remaining-you has the same moral weight as the you-if-nothing-would-happen. Arguably, the person on one side of a quantum coin only owns a half of moral weight, just like other events that you weight with Born probabilities, so the analogy breaks.
In all the cases you listed, the remaining-you has the same moral weight as the you-if-nothing-would-happen. Arguably, the person on one side of a quantum coin only owns a half of moral weight, just like other events that you weight with Born probabilities, so the analogy breaks.