This has been a known thing, an upcoming problem for decades. Everyone knew this was coming. Everyone.
Canada is trying to get out of this hole (the fact that there are 1.4 births per two Canadians), the "population collapse" hole, via immigration, with 500k immigrants per year.
That would be like 5M immigrants per year in the US.
For a comparison, due to the 1 child policy, China's population will halve before 2035.
China is in very, very serious trouble. The entire West is too, but China's trouble will be far worse. Japan keeps building robots, and mechanized walk-assist devices.
There was no "great resignation", simply a well known "great retirement".
Now, should people be paid a decent wage? Of course!! But that won't change this problem one bit, as there are simply not enough working age adults.
And to highlight this, not only do retirees reduce thr number of candidates available for work, they also require more care. Health care, end of life care, nursing homes.
Heck, expecting an independent 70 year old to shingle a roof, something a cash strapped 30 year old might engage in, is far less likely.
So a "too heavy" society is a major issue. And we knew it was coming, for decades, and did not resolve the issue.
For additional clarity, the world will be at about 5 billion at 2040, without war or plague.