You are sort of making my point. If you read the comments being responded to, the argument is that the word “immigrant” only applies to those crossing legally. My counterargument is that it is impossible to pair words like “illegal” or “undocumented with immigrant in that case. Whether legal or not we are describing a type of immigration. So I think we agree. Of course a person cannot under any humane law be “illegal” merely by virtue of their existence. It is actions, not people, that are either allowed or prohibited by law. Due process and humane treatment under the law is vital no matter what crime a person has allegedly committed, which in the case of illegal border crossings is only a misdemeanor.