Sarah is NOT the mother of Rebecca; Rebecca is NOT the mother of Leah or Rachel; Leah is Not the mother of Judah's Canaanite wife and Rachel is NOT the mother of Joseph's Egyptian wife.
There is Not a single list genealogical based on mother and daughters in the Torah and, while everyone likes to argue whether or nor Ruth was really Jewish, there is absolutely no proof that the mother of Boaz was Jewish.
Finally, Jezebel never converted to Judaism, so how could a gentile be the mother of two kings of Israel if Judaism passes thru the mother?