That's an interesting analogy. May I?
Republicans are McD's, and Demmy's are Pepsico (Taco bell, KFC, etc.) One caters to whitebread America, the other to a broad spectrum of special interest "tastes."
Buchanan, we'll say, used to run a Whataburger knock-off chain in Texas.
McDonalds -or- Taco Bell ain't healthy, but it tastes good, and makes the government fatter. If Whataburgers took off (or could take off) nationwide and beat out McD's or Taco Bell, would the government -really- get thinner on "Whatachickens?" No, they'd sell more burgers, too, and the spiral would start again.
Government is a consumer-driven free market, just like fast food. And sometimes a populace gets the government it deserves!!!!
(Me? I hate McDonald's.)