The people of El Salvador are so desperate for justice and security they are willing to settle for a strongman like him. Honestly, I can't say I blame them. I wish the people of El Salvador the best in their path to their own emancipation from violence.
Regarding Bukele's economic policies, I don't know much either beside the fact that he was actually investing public money into crypto and boasting about it.
A document from 1983 is hardly Stalin's era...