The nation is short some 70k+ truck drivers for the size of the economy. It has always been short on drivers but Bidenomics seems to have exasperated the problem. Source: Am truck driver, had a driving job and 2 job offers at peak covid and still currently hear adds for driving jobs from essentially every trucking business in my area.
Maybe because easier jobs have got pay increases while that has been slow to transfer up to truck drivers? Maybe some burn out from driving during the pandemic? Also the recovering economy certainly had to have put a strain on an already understaffed industry.