The Basic Fallacy

Krugman has a quick one about the argumentative attacks that get thrown at "Liberals":

Aside from the silliness of the exercise, this little exchange is another illustration of a point I’ve noticed before: the way hard-right commentators assume that the other side must be their mirror image. They insist that no government intervention is ever justified; so liberals must support any and all government interventions. They want smaller government, as a principle; liberals must want bigger government, never mind what for. They believe that deficits and printing money are always evil; liberals must be for deficits and money-printing under all circumstances.

This mirror-imaging thing has been effective for a long time, and it's the big reason (I think) for why Democrats get beat even when they have better ideas; why they're seen as weak in the face of political opponents who've got nothing but slander going for them.  Unfortunately, The Mud-Slinger usually wins - especially if he's the first to sling that mud.  Gerrymandering has plenty to do with why Dems couldn't get a majority in The House this time even when they got more votes overall, but the main thing is that way too often, the Repubs have put out some bogus crap - either a false positive for themselves or a false negative for the Dems - and let the already-in-place belief that "both sides do it / they're all the same" do the rest.

Once you've set up the framing that requires this Manichean binary simplicity, it gets easier.  And if you have Press Poodles who're willing to help maintain this false balance between false equivalence and false dichotomy, then you have the required 3-legged stool on which to build the perfectly false reality we kinda find ourselves in right now.