Retirees who truly need the money are not the target of this definition.
Younger people have already inherited a shattered economy, impossible real estate prices, and an overall inability to provide genuine opportunities for their future families. Compounding this are financially-secure folks who have a perceived need for more money.
The above definition is not meant to be ageist, as there are many younger "retirees" hoarding jobs too.
young person - " I wish I could find something full-time, my wife and I want to have kids someday but we can't afford it, and forget a pension, that'll NEVER happen"
job-hoard - " Don't worry there young feller, I'm sure you'll find somethin "