Your suffering is endearing. At least I'm not the only rational being on the road. I try to change lanes prior-to, or simultaneously with the irrational overtaker, and then match the speed of the fast lane if possible. If the overtaker gets behind me, another car may pass them in the high lane. If the overtaker stays in the fast lane, and cuts in front of me anyways, I often get right back in the fast lane and wind up passing the overtaker, who gets stuck in the slower lane, in spite of their efforts to the contrary. They'll swerve, mash the gas pedal, and hit the brakes just to avoid being a rational driver, meanwhile I'm just changing lanes back and forth. The article I posted on "parallel boarding" in airplanes has many direct allegories with freeway driving besides just boarding the freeway, eg. "parallel distribution" of your vehicle across different lanes at roughly the same speed instead of "swerve and mash" like it's the freaking Indy 500.