Well, Bernie was also endorsing Castro's Cuba, the USSR, and the Sandinistas' Nicaragua.
https://www.youtube.com/watch?v=KhpVAkBDg5o (He visited each of these countries in the mid-to late 80s, when the atrocities were already well-known).
Not quite the Nordic model.
He praises socialist governments, ignoring their murders and killings of people trying to escape, and when their economies inevitably tank, he shifts to different examples (1980s Bernie "Castro...totally transformed society" visited for the third time in 1989. The "special period" crisis began in 1991 with widespread famine. 2016 "The Cuban economy is a disaster" 2020 "Let's talk about...Denmark!").
The new strategy of endorsing non-socialist economies (Scandinavian countries with capitalist free market economies and strong social safety nets) is probably a better long-term model. Danish Prime Minister: "I would like to make one thing clear. Denmark is far from a socialist planned economy. Denmark is a market economy." https://www.investors.com/politics/commentary/denmark-tells-...