I buy it.
Two of my most blue collar friends just made the jump. One a mechanic the other a deli worker, via bootcamps in their late-20s. Neither hated their jobs, but they also couldn’t afford to move out of their parents houses on those incomes.
For now, they seem to be doing “blue collar” programming work. Mostly freelance basic front-end and rails development. The question to me is if they broaden their scope into other specialties and how quickly that happens. That’ll be my indicator to how long my own overpaid salary might last.