> You need to consider what is actually the “citizenry” of a society. In your example it sounds like the nobles are the citizens and the peasants are non-citizens. Using the term “noble” and “peasant” confused the matter with inter class or socioeconomic concerns.

In-group and out-group dynamics go far, far beyond citizenry. It is clear that you wish to declare all you consider to be undesirables as non-citizens to justify your discrimination against them, but this is not actually a useful model for anything.

> What you’re describing seems to be unequal justice for the poor rather than an in group or out group dynamic but it’s not clear because you’re mixing ideas.

No, I am talking about the literal basis for modern liberalism's existence. Liberalism has gradually expanded to encourage equality between more types of people, but the origin was in anti-royal and anti-noble sentiment, in opposition to birthright privileges and an immutable social hierarchy. You appear to be woefully ignorant of history, which is understandable for a tiny little lizard, but you should perhaps not speak of things you know nothing of.