Except the term was created to reject the idea that restricting hour of labor will lead to reduction of unemployment. All I am trying to say is that there is restricted number of jobs, and people have to live longer given increased life expectancy plus poor social security in Korea so elder are becoming competitors from the perspective of youth.

I don't particularly disagree with what the term you've introduced me argues. Korea has been trying to actively reduce work hours and etc and it still gets all the problems.

My point in saying that "older people aren't retiring" is that there's limited number of jobs, and companies don't have the capacity to hire all the people (reducing work hour can lead to larger total employment, but the income per person will be reduced so not like it helps much). If companies kept growing, and was able to employ people of all age groups then things would look good. But with no new players expanding the economy it's mostly about older people trying to hang onto their job and younger ones trying to break into what exists.

I totally agree with the fact that economic growth isn't 100% zero-sum. But that's when economy grows and everyone is winning, not when almost everyone is about to lose.