Catz
The way family law in this country has/is changing very quickly, with the child's rights now firmly in the front and centre of every decision.
In very many relationships, women are usually the primary caregiver, so when relationships fail, women tend to get residency. Women now know the law is (sometimes) on the side of the child so are less likely to put up with bs, missed contact, lack of maintenance payment.
This is a direct blow to male privilege: men are traditionally at the head of the family. Women need men's protection to thrive and survive. It is a man's place to call the shots both on the women and children in his life.
Men have responded to this assault on their privilege by organising themselves into groups to call for fathers' rights, blackening the names of the many, many lone female parents who have bent over backwards to make things fair, brought the name of the British justice and family court system into disrepute.
And when that didn't work... well a fair few of them decided to kill their exes. Some of them even killed their children. That's how men fight back. Maybe not the men you know (I hope not!), definitely not the men I know (thankfully) - but men.