That "most common job" was debunked. It's an artifact of where you draw arbitrary taxonomy lines.
I’d assume even those with a generous definition are too conservative by far. We rapidly approach a future where no human will operate any heavy machine that accomplishes a discrete task. That task might be to transport goods or people across the country, to lift a steel beam into place, or to assemble ingredients into finished products. Once the cost curve flips over to the other side, the whole thing accelerates.
Even worse if the harmed group is a smaller concentrated minority; they have no legitimate recourse through democratic expression.
It’s worth noting that “driver” is the most common job for white American males, and the United States can’t be too many years from full automation of vehicles. If the benefits accruing to the broader society from this automation are not redistributed in such a way to alleviate the strain placed on the workers displaced from their roles, I fear it will be the moment this pot boils over.