This would be devastating because factory workers and truck drivers make up like 30% of the US workforce
This figure keeps getting thrown around and it is completely wrong. From the BLS, out of the 159 million non-farm workers in the US, only 1.47 million (less than 1%) work in 'Truck transportation', and not all of those individuals are 'truck drivers'. And, while 'factory workers' is very vague, the entire manufacturing sector - which includes far more people than just 'factory workers' - employs 12.6 million (7.9%).
The entire trucking and manufacturing sectors don't even amount to 9% of the US workforce, let alone just 'factory workers and truck drivers'.