So too the commentary, with some pointing out the vast and inexcusable injustice being done to those who pose no threat and to whom the basic necessities of due process have been callously denied.

Nope, they are getting due process, that is why they are being detained, so they can receive due process, and of course be fed and housed and given medical care for free from the American taxpayer.

Is there any country in the world where children are imprisoned with their parents when the parents commit a crime?

In fact there is, North Korea. Everywhere else children don't go to jail with the parents, they are separated.