Perhaps under an alternative definition of the term "concentration camp" which would also include prisons and jails. Whether or not you believe the law is just the people being detained have committed the crime of illegal entry, and they are being detained because of this crime.

The mainstream definition of concentration camp is one where people are interned on the basis of a national, ethnic, or religious identity [1]. The term came to prominence during the Boer War [2] where Afrikaners were imprisoned on the basis of their ethnicity, not for any particular crime. Detaining people illegally crossing a border is not a concentration camp under the commonly accepted definition.

1. https://en.wikipedia.org/wiki/Internment

2. https://en.wikipedia.org/wiki/British_concentration_camps

Except they aren't. No group is being concentrated for being members of religious, political, or ethnic groups. The people in ICE detention facilities are there having been arrested for crossing the border illegally and awaiting a hearing in which a judge reviews their case usually to determine if their refuge claims are valid. By your standard jails and prisons would be concentration camps, which is also ludicrous.

If you want talk about concentration camps then I would direct to the crimes being committed against Uyghur's: https://www.youtube.com/watch?v=gGYoeJ5U7cQ