I was born and raised Jewish. All of my relatives are Jews by birth. To me it is a matter of geneology whether a person is a Jew or not. When I gave up practicing Judaism I was still a Jew for my geneology did not change. When I became one of Jehovah's Witnesses I remained a Jew ( not by religion of course) as my parents remained the same. When someone converts to Judaism it is simply joining anonther religion. Their geneology did not change-just their religious beliefs. You can't change your geneology! To me to be a Jew you must have been born one from Jewish parents, grandparents, greatgrandparents, etc.
I recall having a conversation at work back in the late 70's with a co-worker who was going through a conversion to Judaism process similar to what Moshe went through. Her husband was Jewish and they wanted to raise their children in the Jewish religion. I was already a JW and was witnessing to her...she claimed that I was not a Jew anymore and she was! I explained to her that I still came from the same parents, grandparents, greatgrandparents etc and etc (!) and that my geneology did not change. And neither did hers. She was simply joining a religion that I was born into and have given up. She wanted me to speak to her (unfriendly) rabbi to get his view of whether I am a jew or not. I told her I could not care less what his view was as I still have the same parents and relatives-religion has nothing to do with it- Judaism is just a religion. He ended up coming by the store to see her (and me) and ended up telling me to "return to your God, your People and your Religion". I told him I never left my God-who is Jehovah, I never left my people-my family and that Judaism is just a religion and I will not return to it. He was even more unfriendly to me after that and he told the girl to have no further discussions with me! Why anyone would want to follow Judaism I do not know. I would never have chosen it. But I am a natural Jew by birth and having a religion or not does not change who I am desended from! And it makes no difference if one is a desendant of the Israelites or not. One lady told me "you have Jesus'blood in you!".How can that be? He had no kids! Anyway, sorry to go on with this! But it seems the right place to mention it.