The people living in poverty very very rarely hurt a stranger's children. It's the cops who show up and take them, absolutely destroying their sense of security and growing independence.
That study says poor people are more likely victims. Doesn't even say who is performing the crimes (doubtful, but based on this study could be rich people robbing the poor or whatever), nor does it show the rate at which those in poverty victimize a stranger's child (which despite your sidestepped report here was what you replied to).
For example, despite all the worries about kidnappings, there are only a few hundred kidnappings of children by complete strangers every year.
As an aside (and separate point): The data in there was all 12+. I'm gonna be the one to come out and say it: if the hypothetical reality is the teenager is growing up in a hell-scape world of death-match-violence then unfortunately it's one of those cases of "nows the fucking time to get out there and learn how to (gradually) adapt to the hellscape while we try to make it better." (which honestly is a little what driving feels like when you turn 15)
What you've linked doesn't really contradict what the commenter said; he's arguing that folks don't generally hurt kids, poverty notwithstanding, and that tends to be my experience.
I'm not going to believe either of you. What you offered was not responsive to his claim because it didn't address risks to children, which are the topic.
"False" is your assertion. You have the burden of proof in that claim. If you just wanted proof you should have asked for that rather than make a new, different assertion. The person you replied to took the 3rd option of the tri-state, which requires no burden, which is to merely remain skeptical.
There's a section about poor people more likely to be victims of _stranger_ violence, which backs up your point. I didn't see much about children specifically, but I guess all other things being equal... Just such a sad thing to think about that I don't _want_ to think it unless there's hard evidence.
National studies show more violent crime happens in poor areas: https://bjs.ojp.gov/content/pub/pdf/hpnvv0812.pdf