What about Jews who convert to the Catholic Faith?
They are no longer Jews, then.
But isn't there a blood and ethnicity component to being Jєωιѕн? I was wondering because I know some people who are Catholics that used to be Jews and I was curious as to whether they would still be considered Jєωιѕн or not.
There are, and have been throughout history, many Jews who converted to Catholicism for the sole purpose of mischief and the deliberate destruction of ancient texts and sources of historical connection. Jews, in following their religious beliefs, are under no obligation to be honest with non-Jews.
Queen Esther, for one, is a sacred figure in Jєωιѕн lore who pretended to not be a Jew so she could ingratiate herself to a powerful gentile and be of assistance to the Jєωιѕн people.
There's even Jacob, while in the employ of Laban, weasling his way through the stock of sheep procuring the best for himself by means of deception.
We are in search of the mythical "good Jew" and still looking.