Actually we, as an audience aren’t suppose to know what exactly is Michael Myers. That’s the appeal to it and in this case less is more. It’s for the viewers to speculate.
The idiotic no talent hack, Rob Zombie publically bashes the original and felt that Michael needed a backstory and a motivation and he gave that story in the most white trashy clitched manner.
Demystifying Michael Myers is the most idiotic thing to do but considering that it was done by classless moron like Rob Zombie, I’m not that surprised by the result.