When a mother figure in your life is emotionally/physically absent at any point in time, to the point where you hate her and think that she’s probably forgotten about you.
Trauma caused to a son by a selfish and irresponsible cunt of a mother because she's an insecure idiot. Mommy issues cause significant dysfunction and usually causes men to never be able to trust females for the rest of his life. Usually caused by immature single mothers.
Mike is a misogynist because he has mommy issues.
Jeremy became a serial rapist because his single mom hated men and neglected him because she didn't want to feel taken advantage of.