Were Jews Born or Made?
If you study the history of the Jews in the bible, any not circumcised were cut off from the tribe. Originally the tribe amounted to Abraham's 300+ servants and Ishmael, his only blood relative.
Jacob inherited all of these through Isaac, plus acquired more while serving his uncle Laban.
The number of Hebrews, also called Israel in Egypt needed the entire land of Goshen to live in.
They came out 400+ years later a mixed multitude and continued that way, and were considered Abraham's covenant seed through circumcision.
In Esther's day many became Jews after the Jews slaughtered thousands of Haman's followers.
““When a foreigner lives with you and wants to observe the Passover to the LORD, all his males must be circumcised, and then he may approach and observe it, and he will be like one who is born in the land—but no uncircumcised person may eat of it.” (Exodus 12:48)
“The same law will apply to the person who is native-born and to the foreigner who lives among you.”” (Exodus 12:49)
“And the uncircumcised man child whose flesh of his foreskin is not circumcised, that soul shall be cut off from his people; he hath broken my covenant.” (Genesis 17:14) This would nullify the status of one born in the land.