It seems national debt issues can only be resolved after a period of bloodshed.

‌About 10 years ago during the Southern European crisis and the PIIGS crisis, citizens resisted restructuring, but as the country neared default, they were eventually forced into harsh restructuring.
The same seems to be happening in France; even though things seem fine now, the people will likely resist until they face a crisis and pay a heavy price before improvements can be made.
In any country, it is nearly impossible to persuade the public regarding such issues.
In that sense, what makes Lee Jae-myung a "legend" is this:
If he had only used about 30% of the semiconductor excess tax revenue for handouts
and used the remaining 30% to pay down debt, he would have gone down in history as a legend;
but since the only thing he knows how to do is distribute money, it looks like things will go south.