https://www.nbcnews.com/news/latino/lawyers-advocates-say-48...
Illegal immigrants aren’t “undocumented.” They are present in America without the consent of the American people, as expressed in immigration law.
Assuming they're not in a biometric database and from a non cooperative country like Venezuela.
Again: still bad, still inexcusable, but not the same thing as what would have to be happening here.