Csanád Szegedi grew up in a mildly racist milieu in Miskolc, a midsized town in northeastern Hungary. His father was the scion of an old noble family of Magyars, a point of pride for the young Szegedi, who was born in 1982 and came of age in the chaotic years following the fall of the Soviet-influenced Hungarian People’s Republic. Although the city had a large, crumbling synagogue in its center, like most of his peers, Szegedi chose to ignore it. For them, it served as a fading manifestation of the city’s Jews, many of whom had met their deaths in...