I was an employment counselor in the late 1990s. Even then, ½ to ¾ of realistic, worthwhile jobs were phantoms.
FF to now and hiring portals silently drop viable applicants for a long list of never disclosed reasons. I know temp agencies that hire, send the employee out on 1 job then never again.
I've never know a time when hiring wasn't crap for entire classes of viable applicants.