If kpop was as big in the 2000s as it is today then TVXQ and SNSD success would be tripled what it already was.
That means "Mirotic" would have sold 3 million and "The Boys" would have sold 2 million.
Congratulations to the Kings and Queens of kpop and SM ENTERTAINMENT.
BTS and Blackpink are so lucky they debuted years after these groups.