It’s scary.
Another thing that could help is immigration. Lots of people — mostly women — from countries like China and the Philippines are moving to South Korea for marriage, to the point that the number of mixed ethnic families grew 700% from 2006 to 2014.
By 2030, it’s estimated that 10% of the population will be made up of foreign-born families, compared with a little over 2% today. This means huge changes in cultural norms for a society where being “pure-blood” Korean has long been a praise-worthy trait.
Source: South Korea’s gender problem could lead to an existential crisis