The system in North Korea is very good. Any immigrants?

Those 250 people who tried their best to defend Kim's father were always talking about the reasons for loving North Korea. Why don't they immigrate to a cosmic power? It's all suppressed eggplant. Haha, so I can only continue to argue that no one immigrates for the sake of system!

I wonder if this kind of person's brain is really broken? Lying and cheating are a habit. Why didn't he say that the system can determine the arrival of immigrants?