The discussion here is about a systemic issue where men do not do their share of child-rearing and are often even abusive towards children. The solution isn't to have the "nice guys" step in heroically to protect women and children from the "baddies". The problem isn't a lack of "nice guys" who are willing to step in and "defend women", this isn't a battle between good and evil where the chivalrous will prevail. The problem is with male socialization. Instead of trying to play hero for social credit, men need to do the hard work of finding ways to deal with their feelings- loneliness, anger, inadequacy and sexual unfulfillment- in a healthy, non-abusive way. Men need to acknowledge that this isn't a few bad apples; it is an issue that men face as a class and need to address as a class. They've been taught unhealthy coping mechanisms as boys and those things were reinforced in them as men and they need to deal with unlearning it, not try and pretend it's a problem with "bullies" or "PUA" or "incels" or "pedophiles" or "rapists" or "[insert demographic] guys" (or Marxists, or feminists).

These people can be linked together

No they cant. Your claim that "women do it too!!" is a derail of the main discussion. Isn't it funny how every time men are being called out as a class, some dudebro or handmaiden jumps in to make sure everyone knows that "women do it too!!!11!" ?

Parents that sell out their children for thrills; abusive, neglectful, exploitative parents are not a female problem. Women make up a higher percentage of child abuser only because women are overwhelmingly expected to be the main, if not sole caretakers of children. How many of the abused children in your family have active and engaged fathers?

Women make up the largest percentage of abusers when it comes to child neglect, but neglect can only be carried out by the parent or guardian responsible for the well-being of the child, so that rules out absentee parents who do absolutely nothing. Moreover, women are more likely to live in poverty and poor living conditions can be considered neglect (e.g. not having enough food, not having weather suitable clothing, leaving the child unsupervised due to not being able to afford a sitter^[1] ). On the other hand, fatal physical child abuse is far more likely to be carried out by a man- physical discipline is often considered child abuse, but there's a difference between that and killing your kid. And of course, men have almost a monopoly on CSA. When adjusted for the disparity in time invested in childcare, men are just as, if not more likely to carry out child abuse (CSA not included).

What unique solution do you have for dealing with abusive mothers? Are we castrating them too? I support the use of contraceptives, as do most women- the issue is usually with a lack of access. There's nothing to do besides taking the kid away like you would any abusive parent. Terrible people are everywhere. This is not a female problem, it is a parenting problem.

Though, I suppose, I could argue that if more men were involved in child rearing, and men were to continue abusing children at the same rate as observed by statistics, there will be more child abuse by men. Thus by technicality, the percentage of child abuse carried out by women will go down. In any case, if every child had at least two parents present to rely on, it would lower the odds of abuse.

[1] IIRC, there was a woman in the US who was deem neglectful due to leaving her daughter unsupervised at a playground while she went to a job interview because she couldn't afford a babysitter. Not going to discuss the morality of the situation, but aside from the general work being done to pull and keep women out of poverty as well as creating greater support networks for single parents, I don't think there's much one can reform to prevent this.