Answer:
There are several obstacles that would prevent the unification of Korea, at least in the near future.
On the one hand, we find a clear difference between the political and economic systems of North Korea and South Korea. In the north, the communist juche regime exercises centralized and authoritative planning of the nation's economic and political life, while in the south a market economy and a democratic political regime predominate. This generates great differences at a social level, which are difficult to amalgamate immediately.
Second is the enormous hold on power by the Kim family in North Korea, making it difficult to unify with a transparent and democratic system.
But the biggest obstacle lies in the huge economic and development differences between the two halves of the peninsula: in the event of a reunification, South Korea should finance the development of North Korea. In other words, the southern part of Korea is a developed and prosperous nation, while the northern part is an underdeveloped country, poor and with a very low standard of living. In the event of a reunification, a lot of money should be contributed by South Korea and its inhabitants to revive the northern economy.
