These are practiced expressions. Literally. It's based on a philosophy of being "powerful" by following traits of aggression in animals. (Compare to an aggressive dog.)

Many of the ways these people act and look in non traditional ways is because they are operating from a baseline where humans are purely animal, so they mimic animals, and men and women are the same, so they frequently mimic male traits and expressions when attempting a practiced appearance of dominance, regardless of their gender.

I'll abstain from injecting my opinion on that approach. But it's not demons. It's simply a change in baseline influencing approach and expression.