As the article makes clear up front, the number of people in the USA of working age is diminishing faster than the rate of overall population is growing. Yes, raising pay will bring some retirees into the workforce (is that good or bad for those people?) but won’t materially increase the size of the pool.

If your country’s population is growing you are “giving away” the land to other people, and of course different people have different attitudes…what is considered “culture” changes regardless.