That’s a very strange misreading of how elections work (and misstates US demographics, most of us live in suburbs).
But even taken on its own terms, isn’t that better than “a nation ruled by a rotating handful of states with nothing in common other than a somewhat steady 50-50 split in the electorate”? The current system is indefensible madness.
The duopoly has more to do with the bias of first past the post voting than the population demographics. The electoral college exists for the express purpose of preventing population centers from running the country with no regard to the rural population.
But even taken on its own terms, isn’t that better than “a nation ruled by a rotating handful of states with nothing in common other than a somewhat steady 50-50 split in the electorate”? The current system is indefensible madness.