Like most slasher movie franchises, Halloween has had several major entries and sequels. Unfortunately, this longevity hasn't always been a good thing, as some of those sequels tended to drift far away from the original John Carpenter Halloween in both quality and themes. The result is that iconic killer Michael Myers has sometimes been robbed of his agency and central reason for homicide.
Source:https://www.cbr.com/halloween-sequels-disservice-michael-myers/