What happens is that it takes the form of attributing bad things to enemies and good things to allies, such that you are blind to where your allies are not your allies. If your allies are acting opposed to your interests but you like them because they signal to you as an in group, then you are being fooled by them. Thus, it is good to actually evaluate things on their merits once in a while.
The "blind" ones are people like you! doing everything in good faith against people who aren't and fundamentally oppose you and your existence. Foolish!
Sitting down at a table to play poker and refusing to acknowledge the rest of the players are trying to take your money isn't "avoiding cynicism" it's just being a mark
