| What I don't like about this analysis is that it enshrines the notion of political parties. It makes individuals into automata that simply vote for whatever candidate is thrown at them. The ideal is that candidates can rest on their own merits, with the party mechanic existing to provide support to candidates who nominally align with the party's interests. People vote for candidates, not parties. Even the reality is that people are not determined by their party affiliation; New York City, for example, has repeatedly elected Republican mayors despite being overwhelmingly Democratic in state and national elections. This has even been used in a derogatory sense, as "Rockefeller Republicans" or "New York Republicans"; people affiliated with the national party but who skew to the preferences of voters in their region. In your hypothetical state, once you created the districts, then the competition inside that district is between candidates who try to align themselves with that region; people who, for example, can be a "green-republican" to draw voters from both blocks, or just a person who speaks to the needs of voters in that district, regardless of party affiliation. Using some sort of state-wide rank-preferential or approval system means that we remove a lot of the strategizing on the part of voters, which is a positive, but the strategizing on the part of political parties and individuals seeking office become much more complex, and not in a way that serves to present candidates that appeal to issues confronted by groups of people regardless of their party affiliation. Geography is just a heuristic for this, but not the worst one you could think of. |
The reason for this is because of our electoral system. Imagine we have 4 parties each with about a quarter of the support. One of those parties is going to get 100% of the representation, and the rest are going to get 0. This incentivizes these parties to begin to merge. Two parties go 'Hey I know we have nothing in common, but if we work together we can guarantee our voices are at least heard in congress.' And the other two also see this going on and does the exact same thing. Next thing you know it you have things like libertarians and evangelical Christians both being supposedly represented by the same party, and you get a congressional approval rating in the teens.
Proportional representation changes this. Fractional support being more than sufficient to get seats in congress means people can break into parties that actually fundamentally represent their views - instead of being forced to clump up into super-parties. I think this effect would be particularly emphasized in our country. We have a phenomenally good system of checks and balances ensuring that even 'the little guy' in congress can have a meaningful effect. The problem is our electoral system all but precludes there being any little guys in congress.