Why is the heavily Hispanic "True Blue Bronx" the most heavily pro establishment part of NYC? I'd assume that would be the "Black Bloc" since they're regarded to prioritize electable moderate candidates.
Never been north of the George Washington bridge (I-95) or east of the Brooklyn bridge, so take my words with a grain of salt. My guess would be the heavy presence of non-ADOS and immigrant-origin black people in NYC and the observation that black idpol is somewhat indepedent of the D establishment.
I feel like NYC Latinos are more pro-establishment due to being less wholly acculturated into the NYC political scene as their ADOS or Orthodox Jewish counterparts. But I imagine actual New Yorkers would know more about that me.