Are you ok with 90% voter turnout if 80% of them have no idea who they really are voting for?  Not saying this is the case, but it might explain a lot of things.
I like a good debate, but boards like this one are replete with people who 'nab and grab' anything they can to support thier point.  I think if you looked hard enough you would be able to find support for anything you like.
This is not good for debate or knowledge gathering.  Quite the opposite I am afraid.  You wil never be able to find out what a politician really intends if your only sources are the media and the WEB.