No, he is strictly dealing with Federal taxes.
The point the author misses is that the taxes are already embedded in the price of the product. When you buy a car, the price includes all of the taxes being paid by the people that produced the car. If you move those taxes to the point of sale, the list price of the car goes down add on the sales tax, and the price out the door hasn’t really changed.
Ok, if he’s only talking Fed taxes, there needs to be major changes in state/county as well, cause in Maryland where Liberal DemocRATS rule, we are taxed till we squeak as it is.