That and his lesser touted positions are NOT popular outside deep blue NYC.
I love the guy but he isn't winning the Midwest with ALL his positions and it's stupid and basic to think that. No one in Wichita wants government run grocery stores for instance.
They certainly can take pointers from him but there's a full cemetery of progressive candidates who have crashed and burnt outside deep blue areas.
He's exactly what NYC wants and needs. He wouldn't be for every single place across the country.