As with software, whatever the real goal is should be decided and then approached directly. Any effect that is brought about as an accidental side effect of an unrelated architectural decision should be regraded as a flaw in the system.
If we want better local representation, we can strengthen local government, or create governments smaller than a city. We can eliminate geographic districts, as units that elect representatives to some higher level of government, but we can still have excellent local government.
If we want cultural representation, we can create a new branch of government, that allows people to identify as a particular culture, and then vote for members of that culture.
If we want religious representation, we can create a new branch of government, that allows people to identify as a particular religion, and then vote for members of that religion.
If we want racial representation, we can create a new branch of government, that allows people to identify as a particular race, and then vote for members of that race.
If we want language representation, we can create a new branch of government, that allows people to identify as speaking a particular language, and then vote for members who also claim to speak that language.
Again, the same rule we apply to software architecture should apply here. Whatever kind of representation we regard as important, we should approach the matter directly, and not try to achieve the effect accidentally, as the side effect of some other architectural decision.
Indeed, many of the problems we see in our political system are exactly because too many goals are being overloaded on too few institutions. If this was a legacy software app, and I was brought in as a consultant to clean it up, I would immediately suggest that a dramatic increase in both encapsulation and polymorphism was needed, and could only be achieved by introducing new branches of government.
To a limited extent, I implied as much when I wrote about the division of labor and the need for highly specialized committees:
https://demodexio.substack.com/p/why-have-politics-in-the-us...