First off, this study (2010 and 2018) shows that men are more likely to murder their children than women:
"Generally speaking, a child is more at risk of filicide by their mother in their first year of life .. and usually that's because of severe mental illness … really severe depressive or psychotic symptoms," she said.
"As they get older it's their father that's more likely to kill them and usually our research is showing us that it is retaliatory or aggressive in nature."
Or perhaps in roughly equal rates (2000 - 2012):
"In cases where children are killed intentionally, women are more likely to kill babies and newborns, particularly in circumstances of unwanted pregnancies. [...]
Mothers are also more likely to kill their children during a psychotic episode.
Fathers who kill their children, meanwhile, are more likely to have a history of domestic and family violence. They are more likely to kill out of revenge towards a partner or former partner in the context of family separation."
Secondly, sexual offenders are more likely to work with children, and the only comprehensive study on the issue shows that despite making up under 5% of nursery workers men committed 60% of all sexual and non-sexual abuse:
Recent data show that one in 20 men in the Australian community are motivated offenders (individuals who reported both sexual interest in and offending against children). However, they are almost three times more likely to work with children compared to other men.
This study examined cases from 1983 to 1985, and identified 270 daycare centres where 1,639 children were found to have experienced substantiated sexual abuse. Although men made up only about 5% of childcare staff, they were responsible for 60% of the offences. The abuse was often severe, with 93% of victims subjected to some form of penetrative sexual violence.
Thirdly, in the modern day, paedophiles are deliberately exploiting nurseries' desire to have men employed, and using them as hunting grounds, where they have the perfect access to non-verbal victims:
"Inside these encrypted forums, predators swap tactics and advice. One of the most chilling questions posted is, "Where do I find a child?"
The answers are laid out in detailed paedophile handbooks — guides that cover everything from online security and grooming techniques to how to pass a job interview and build trust once inside a centre."
[...]
Most of the material is too explicit to show, but the discussions reveal how organised and deviant they really are.
One of these guides instructs predators applying for work at childcare centres on how to answer job interview questions about why they want to work with children.
[...]
"When I began working in this field 25 years ago, child sex offenders were the lone wolves out there … and now with the internet, they're hunting in packs and they are strategic, they are vicious, and they are supporting each other as they hunt.
"There is an entire network that is facilitating more and more egregious acts of harm against children. And … it's increasing at an almost exponential rate."
Dr Bourke's warning is stark: "They're better organised than we are. They're more strategic and, if they go to the right place where supervision is missing and policies aren't enforced, they're capable of having many, many victims."
Now, you can say that nurseries and childcare centres should just have better safeguarding, and they should, as women can neglect or abuse children too – but in practice, that's not going to happen, or it's not going to happen perfectly. And we should reduce all risks in the most effective way possible, and even with great safeguarding, the biggest risk is men.
Allowing men to work in ECE sharply elevates the actual rates of children being sexually abused.
If you are in favour of men working in nurseries, you are, in fact, in favour of children being sexually abused as you endorse policies that lead to more children being sexually abused.
I know that will upset some people, but it's reality. Again: If you are in favour of male nursery workers, you are enabling the sexual abuse of children.