The Mam-and-pop is a pile of slop. Big Apple officials took prospective bidders on a pathetic tour Wednesday of a trash-strewn empty lot in East Harlem where Mayor Zohran Mamdani’s planned $30 million city-owned grocery store is supposed to become reality.

The top DSA leader whose parents set him up in cushy Brooklyn digs short-circuited as a union electrician — and then convinced his socialist party comrades to pay him a near-six-figure salary, The Post has learned.