Misinai first heard about the "Hebrew origins of Palestinians" theory from his father, Kha'yim Avraham, who served in the Royal Artillery in the Second World War. His interest was rekindled after the 1991 Gulf War, when there was talk about a new order in the Middle East. After the failure of the Oslo Accords that led to the commencement of the Al-Aqsa Intifada in 2000, he abandoned his career as a Computer scientist and devoted his entire life to investigating the Jewish roots of Palestinians.