Political partisan rule #1 - Be unable to see their party is controlled by elite powers that give zero shits about left and right.
Rule #2 - assume anyone that doesn't agree with them is the OTHER SIDE, not an independent that rejects BOTH CORRUPT SIDES!
Rule #3 - be myopically unable to see that anyone could possibly reject the left-right paradigm or see beyond because they're too blinkered and MSM programmed to overcome their biases.