Couldn't the same thing be said about EGermany in 1988?
No. People are starving to death in North Korea, and not just enemies of the state. They have spent all their money on their military in some insane death cult moves. They need to stop that. Nobody is going to invade them, basically because the place is a pathetic Third World pesthole.
They need to run their country like 1950s Japan for a while. Build up agriculture, then industry, information age, just go through the steps the rest of the world has since 1953. If they would do that for about 20 years, they might be ready for unification. Without that it would be too much of a shock to both North and South Koreans.
But THEN a unified Korea would be a powerhouse. Imagine South Korea's industrial capacity combined with full nuclear arms club membership. They might actually eclipse Russia eventually, and would certainly be on par with France or the UK.