"Most of the low paying jobs have existed for decades in various industries (esp retail), but most of those tech jobs didn't exist 20 years ago." How many low

"Most of the low paying jobs have existed for decades in various industries (esp retail), but most of those tech jobs didn't exist 20 years ago." How many low paying jobs are taken by e.g. a high paying e-commerce job? Hundreds surely. And if there are less low paying jobs you can pay someone less to do them because there are so many people looking for those few jobs.