What happened to the Eirev Rav after the Jews entered Israel? They were open trouble makers in the desert, yet nothing was mentioned of them later?
Did they clean up their act? Did they die out?
The gemara, Beitzah 32b (?), says something about a rabbi who saw a Jew who gave tzedakah was assumed to be from the offspring of Avraham Avinu, and one who did not was descend from the erev rav. I have heard that the Zohar and other kabbalistic literature say that Jews who sin, if you investigate their lineage far enough back, you can possibly find that they actually aren't Jewish. The Vilna Gaon also said something about the erev rav in his day. I heard someone recently compare some of the Russians who live in Israel today who are not Jewish to be similar in this regard.