In all likelihood the law is meant for political refugees and exile and not immigration, so it doesn’t really count as a broad definition (I could see people who are sanctioned by the ICC or other equivalent western institution to take it considering that they’re effectively unperson anyway). But in that case you’d probably just go to Russia instead.

Besides the shock culturally, emotionally and physically of moving to a different country (even a socialist one), it’d also just be a more difficult and precarious life. I would feel incredibly guilty if I was treated better than a domestic DPRK citizen and I’d also probably just be relegated to living in Pyongyang. If I do get my doctorate I could probably teach in a university like some German (or British?) computer engineering professors had done before but I doubt I would actually be “in the socialist party” in any way since that’s not how it would work.