the person who was sent, and who should not have been sent, was a Salvadoran citizen and a legal resident alien of the US.
Please refrain from hyperbole in these times. If/when US citizens start getting sent to prison camps, we need to be able to tell each other that it is happening, and if you cry wolf now, nobody will believe you when it does actually happen.
It is bad enough that it happened to a legal alien. It's more important than ever that we be precise.