Wait, these are all runaways?
I don't know what you mean by 'runaway' but the kids are crossing the border unaccompanied. The parents are well aware the government will treat unaccompanied kids better. What should the government do?
They are working on improving the conditions and it looks like they aren't doing a good enough job, but it's a far cry for deliberately separating families where in many cases the parents can't even be found.