I really meant that from the standpoint of ethics and morality, i.e. why should I obey the law when literally tens of millions will get a largely free ride for not having done so. I agree that spending time in prison is a good reason not to do certain things, and I'm not serious about breaking the laws in question.
But I'd love to see one of the pro-amnesty pols answer that or a similar question.
As to morality, experience should be a guide as well as a reminder. One’s personal experience should help make these decisions, but seeing what happens to others gives a lot more examples since there are many more others than yourself. Sometimes history can help, too, although there are probably more examples of atrocious behavior than benevolent. There’s a lot of material to study and even then it comes down to what you decide. There is also the possibility of eternal punishment in the fifth ring of hell, but then again maybe that’s just a story.