Zohran Kwame Mamdani, born in Kampala in 1991 to postcolonial theorist Mahmood Mamdani and filmmaker Mira Nair, rose to prominence as part of New York’s ascendant socialist left.

Any damage would likely reach Chiswick, Streatham, Tooting, Stratford, Hampstead, Lewisham, Greenwich, and Sydenham, Wembley, ...