I am NOT saying anything and really my friend, I love you but why do you feel the need to make an argument of everything??????
You asked about JEWS, not a tribe of the Jews which is Judah.
A Jewish website is what a used to quote from and it is...................
What Makes a Jew "Jewish"?
According to Torah law, a person's Jewishness is not a matter of life-style or self-perception: one may be totally unaware of one's Jewishness and still be a Jew, or one may consider himself Jewish and observe all the precepts of the Torah and still not be a Jew.
In other words, it is the relationship between the Jew and his Creator that defines his Jewishness — not his acknowledgment of this relationship or his actualization of it in his daily life. It is not the observance of Torah's mitzvot (Divine "commandments") that makes him a Jew, but the commitment that the mitzvot represent."
Now you may wish to argue with them about their own perception.
Then from another site.................
Barak Diba, Israeli atheist Jew. IDF released. Studies Math. Live in T.A
Answered Sep 8, 2017
It depends who are you asking:
The dry law has two options. One recursive: if you have a Jewish mother, and the other religious: if you converted successfully to Judaism.
For terrorists, if your father was Jewish that's enough.
For Anti Semetics the whole gonverments and people who don't agree with them, are considered Jewish.
From a personal inter level, I know there are people who feel deep connection to the Jewish people and history, and the feeling of belonging, that they consider themselves as Jews. For the most part they are converting in the future.
I think if you have a
close relative (2 generations distance) who is Jewish, but you aren't considered a Jew by the dry law, and you feel your story is
revolved and tied up in the Jewish fabric, and you
care for the Jewish people and seek and
identify as part of it - after a combat service in the IDF, you should considered been Jewish.
Today all these people have to convert through the religious way and keep Mitzvot, although they aren't religious. Why can I be atheist Jew but they can't? This is wrong, and should be fixed. It can't be that people who have
close Jewish ancestors (even a father) have to be religiously converted although they proved to put their destiny within the Jewish state and protected it.
It can't be right, that “none Jews” who had a Jewish father were
prosecuted and carnaged in Europe, and for Israel, the
safe heaven for all the Jews as they, they are simply
“not Jewish enough”.
I expect more from ourselves.
So
for me, you are Jewish even if your grandfather is Jewish, you identify as one and you proved to act for the safety of the Jewish state.