e.g [flagged] Target director's Global Entry was revoked after ICE used app to scan her face [>>46833871 ]
Stuff like actively expressing opposition to taking them on as a customer, trying to persuade management to do otherwise, and so on would all be perfectly kosher. But the stuff the top post in this thread alludes to, let alone what it links to, is how you end up in prison for a very long time after the 'I didn't know it was illegal' defense fails.
There has been a few news articles (and court cases) where this question has been raised and it is not strict true. Employee actions are only actions for which the employee has been given as an task as part of their employment and role. Actions outside of that is private actions. When this end up in court, the role description and employee contract becomes very important.
A clear case example is when a doctor is looking up data on a patient. Downloading patient records from people who they are not the doctor for can be criminal and not just a breech of hospital policy, especially if they sell or transfer the data.
There is no in group, out group, or whatever else. Go to Mexico or Canada illegally, as an American, and you're getting deported, same as everybody and everywhere else. Vice versa if a Canadian, Brit, or whoever else comes into the US illegally, they're also getting deported.
If you are illegal, you can literally show up fresh off of jet and on day one in .ar, file a court case for citizenship, have a lawyer run down the clock for a few years (by constitution in argentina illegal residence and subsistence for a few years = citizenship), and all the meanwhile they are legally barred from deporting you.
There are several countries that refuse involuntary repatriation of their citizens. With the Jews in germany, same issue, hardly anywhere was willing to take them. And that's when you ended up with the perpetrator buffering them in these camps until they just gave up because there was no place to send them other than back into the broad population.
Of course it is the fault of the USA if these people are abused in these camps, but these peoples' home country are not doing any favors to the people stuck there by refusing to take them back.
People in i.e. France are dealing with similar issue where much of their criminals are Algerian because Algeria is refusing much of the repatriation of illegal immigrants in France. France has chosen to just release them back into population rather than build camps, with end result Algerian gangs terrorize the populace knowing they can't be sent back, which obviously plays into the hands of pushing voters towards the right-wing.