>Also, your definition is quite different from the original definition of concentration camps,

You mean the ones the British used in the Boer wars? And that's just the earliest ones I know of, I'm sure sequestering your enemies into tiny areas with inadequate resources is as old as society itself

You are confusing concentration camps and extermination camps. In Nazi Germany many but not all concentration camps were also extermination camps. Historians generally agree that US has now concentration camps in their original meaning.

Separating children from their parents into inhuman concentration camp is a crime against humanity.