Then you missed the point of the article, which is about why the parties in a system like the US's can be expected to be ideologically similar, based on game-th

Then you missed the point of the article, which is about why the parties in a system like the US's can be expected to be ideologically similar, based on game-theoretic considerations. I mean, you may have the opinion that it's a trivial or incorrect point that wasn't worth expressing, but you seem not to be aware that it's there at all. (tl;dr: you didn't like the article because it had the temerity not to be the article you were expecting. Who knows, if one read such articles one might learn something one didn't already know!)