Indeed, and that would apply especially to a two-party system. In Canada, for instance, there are several main parties, so there's vote-splitting between liberals and conservatives, and you don't see such tight races. At least, when an election is close in Canada, you can see a breakdown of the votes, as it were, a continuum of public opinion reflected in the several parties' vote totals. America's choice is binary.

But your analysis here leaves out the nonvoters (usually around half the electorate). Where do they fit in the dromedary? I suppose they're off the map, yet I think their nonparticipation carries an implicit message that's consistent with what you're saying: the American system is dysfunctional and captured by special interests. The corporate media are part of that dysfunction.