well, 64% isn't great and i don't disagree that from a distance (i live in tokyo) your political system is pretty unappealing... bought politicians, tons of lobbyist, vested interests the norm etc, and not mentioning the appalling scafu on the bush-gore elections...
not sure you guys are any worse off than any other major democracies though...
in any event, of course its not perfect at all but what do you think of the alternatives? at least with the ever-increasing levels of transparency permitted / imposed by modern societies' standards and technology, you can keep these guys in check way more than u cld have, say, 50 years ago... and u know they DO keep each other in check to a large extent, if only because of the competitive nature of the game (politics, media, finance, petro-military complex etc)...