Nothing says “Eat the rich” like paying for the knives and forks. A hedge fund billionaire and his art groupie wife are pumping millions into socialist think tanks positioned to help New York City Mayor Zohran Mamdani achieve his Democratic Socialists of America-backed “worker’s paradise.” The pair are on a mission to punish landlords and railroad more New Yorkers into government housing, The Post has learned. From their $20 million Upper East Side townhouse — and their 10-bedroom, nine-bathroom, 10,000-square-foot Hamptons McMansion — Bobby and Carola Jain write checks funding Mamdani-linked intelligentsia paid to create models of how far-left concepts...