Earlier quoted context omitted.
Consider if world leaders didn't die. That would potentially mean an indefinite rule in the cases where there is no peaceful transfer of power. That means no change. This means being governed by an increasingly old person, whose ideas and beliefs haven't changed since the stone ages. "[Death] is Life's change agent. It clears out the old to make way for the new." Edit: By downvoting without commenting why you disagre…
> That means no change. This presupposes people cannot change, which you haven't supported sufficiently with your argument.
The fact that a minority of people are able to adapt their views over time does not change how the general population does not do this.