Was Franklin D. Roosevelt of Jewish origin?.

Regarding the ancestry of Franklin D. Roosevelt, Adriana Pena says: " If they were baptized, they were Christians. Which denomination might be open to debate, but there are so many Christian religions that it is a stretch of the imagination to suppose Jewish religion, which does not have the rite of baptism", RH: Of course not, but baptism was largely a social rather than a religious ritual. Moreover, in Spain many conversos were ostentatious in their practice of the Catholic faith but continued to practice the Jewish faith in private. Many travelers left testimony to this. Incidentally, there is only one Christian religion, although there are many churches or sects.