I find laws that discriminate based on national origin to be unfair
What is this "fair" thing? Life isn't fair. The governments are responsible to the citizens a single country, not the whole world, so they are unfair to non-citizens when it makes sense economically or politically. The immigration laws will be relaxed once it's in the interests of the country to attract more immigrants and tighten when there are enough. Happens all the time all over the world. You can pretend that this is about human rights, but it's really economics, with a healthy dose of politics.
What is this "fair" thing?
It refers to aspects of behavioral symmetry that the speaker prefers and is willing to use power to enforce in his or her environment of interest. (At very least via an attempt at moral persuasion.)
As Multiheaded added, "Personal is Political" stuff like gender relations, etc also may belong here.