They're ignoring behavioural genetics as always. All behaviours are partly genetic in cause, to varying degrees. Genetic susceptibility to alcoholism, or addition to any drug, for example, is heritable. The children of two alcoholics, adopted at birth to a non alcoholic family, remain more likely than others to become alcoholics themselves.
The same applies to all the behaviours, personality traits, and IQ, that underlie different criminal behaviour as well as child abuse. Risk-taking, for example, disagreeableness, low IQ, impulsiveness, low conscientiousness, inability to empathize, mental health problems, personality disorders. That's one of the reasons why there is a correlation between suffering child abuse growing up and criminality in later life. Environment is the other, including of course the prenatal environment, where a lot of harm is already done in many cases. It's a correlation that dogma insists is a cause.
In other words, child abuse and criminal behaviour share many similar underlying behavioural and therefore partly genetic causes. Children removed at birth from abusive parents remain more likely, statistically, to become child abusers or criminals themselves.
Actual experts know this, it's not even arguable in 2023, but pure environmentalism is a fanatical dogma, and not coincidentally it pays a lot of salaries. Most social policy is built on it and has been for a long time.
Many people will get upset about the above. Anyone reacting with - 'but I was abused and I turned out fine', 'but my parent was a criminal and I'm not', or shrieking about eugenics and concentration camps - statistics is taught incredibly badly at school but this is basic stuff and I think most people can follow it if they can set aside their emotions long enough to try. I won't be explaining.