Accurate for the most part, but in truly heavy traffic - in America - its unrealistic to expect the passing lane to be continually unoccupied and available for your unfeterred use as an Autobahn.
While "don't get passed on the right" is excellent advice, I'm not going to feel much obligation to "squeeze over" just so you can weave in and out of traffic, tailgating the remaining 2400 cars in front of me.
Doing the right thing because it is the right thing can start a movement.
The futility of the speeder’s goal is not your concern.
Your concern is to obey G-d. Part of that is to obey the law of the land.
Start with yourself. Stay right.
What others do is not your concern.