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What a great and despicable crime they’ve committed, to exist without the proper paperwork. How unacceptable it is that they failed to renew their visas, truly they deserve imprisonment without due process in Guantanamo Bay, where they can be abused like the scum they are without the pesky bleeding hearts demanding consequences. You are a truly moral and good person, and your strong words will surely be rewarded with low grocery prices.
/s
Or do it anyway while knowing the risks, and publicize any consequences you face as much as possible. Civil disobedience is highly effective.