Avenger Endgame is a movie where time travel doesn’t make any sense. If past Thanos is killed 5 years later in the future, whose head did Thor cut off 5 years ago and why?
Thanos never collected all the stones and never snapped his finger so no one actually died.
So why Iron Man used the stones and died. For what reason.
Endgame is far from a good movie, but people are watching it anyway.