they have an irrational need to avoid uncertainty. it makes things scarier so it drives to to control and impose order, to simplify and make binary, reduce degrees of value to absolutes, and so on. authoritarianism is sometimes measured with the uncertainty avoidance index, or UAI.
wilhelm reich in his 1933 paper thought the fascism he was seeing in nazi youth was caused by sexual repression, particularly masturbation associated with religion, guilt, violence, punishment, paternalism.
iain mcgilchrist in his book about the divided brain observes that the left hemisphere of the brain, connected to the right hand, wants certainty at the expense of truth.
sex on the wrong brain -book- explains the connection - we've been learning sex with the wrong hand. impatient satisfaction-demanding reproductive impulses are interfering with brain functions like math and logic that need patience and objectivity. such as sex and quuantification/numbers = greed and unregulated capitalism. sex and logic = need for finality, premature conclusion, certainty. and it goes back hundreds of thousands of years and explains it is why most humans are right handed - the extra greed, fear, suspicion, competition etc had survival value in times of conflict.
and the anatomy involved makes it worse in males, contributing to misogyny and sexual violence