Drivers would quit? Why wouldn't they raise their prices? Truck transport is an irreplaceable step in every company's sale of goods to another person or company

Drivers would quit? Why wouldn't they raise their prices? Truck transport is an irreplaceable step in every company's sale of goods to another person or company. Well, a couple might be able to switch to trains, but they'd be the minority. The only way demand for freight transport would go down is by reducing inefficient dead space in product packaging - ie exactly the type of efficiency improvement we would want from a tax.