And some of them hated and still hate FDR because he did nothing to rescue Jews prior to the holocaust. I know that there are Jewish women who will fight like crazy for abortion “rights” because of the incidence of genetic diseases in some Jewish populations with the theory is that this option has to be there in case the baby tests positive. Also there were Jews who in spite of the evil that the USSR did to them after WWII figured that anything was better than the Nazis.
FDR increased his share of the Jewish vote after refusing the MS St. Louis.
FDR went from winning 82% in 1932, and 85% in 1936, to winning 90% in both 1940 and 1944.