Korea has one of the best R&D stories worldwide, one of the most innovative places in the world, one of the best life expectancies worldwide, and amazing tech everywhere. All while having few natural resources and having gone through an extremely destructive war relatively recently. Korean middle class is much larger than that of U.S. and lower class much smaller.
Whenever I come across Korean engineers, they're always very knowledgeable and hard working.
Korean manhwa is arguably more innovative than the Japanese counterpart.
So guess my question is: what is not to like?
Even if it were a Monarchy, if the results are pretty good why not just leave it the way it is?