Your argument - "accept an unjust law or leave" -
applies equally well to all sorts of laws.
Of course it doesn't. I don't doubt you are well aware a law you consider unjust because it causes human beings to be grossly mistreated is entirely different from a law you consider unjust because it makes it hard for companies to enter a specific national market and are just making a disingenuous, trollish, argument. Morality is not black and white and two things you consider 'unjust' are not comparable merely because you can find a single word that you believe describes them both.And if you really are not aware of such differences, then you're an asshole and for the sake of society and those around I hope you learn about the difference.