It's not that the USA isn't democratic enough. Quite the opposite. The problem is with public choice economics, and rationally-irrational voters. The problem i

It's not that the USA isn't democratic enough. Quite the opposite. The problem is with public choice economics, and rationally-irrational voters. The problem is that the government wields sufficient power that it's (very) cost effective for those who have sufficiently deep pockets (corporations, unions, other special interests) to woo the legislators for special privileges and rent seeking. On the other hand, while voters collectively could wield power to counter this, it's diffuse, and any one particular voter has approximately zero influence, and thus has little incentive to make the significant investment in educating himself about what's going on. Thus, the electorate is generally ignorant (and rationally so), and does not know about (most of) the shenanigans going on with their government.