That's so stupid. Everybody claims to be part of the 10 Lost Tribes but there are no 10 Lost Tribes. We know that the Jews are from the tribe of Judah. The Jews look like a middle-eastern people group like Egyptians and Iraqis. They don't look like European people.

It's absurd when people claim that the English are one of the tribes. England was invaded by the Romans and the Danes. England also contains Wales, which has it's own language. Cornwall had it's own language until the 1700s.

Jews today know who is from the tribe of Levi.

https://www.jewishvirtuallibrary.org/the-tribes-today-kohens-levis-and-yisraels

"Today, Leviim are believed to be the direct patrilineal descendents of Levi, while Kohanim are Leviim who descend directly, through their fathers, from Aaron. Other Jews are assumed to come from one of the other tribes and are called, simply, Yisraelim. A convert to Judaism takes the status as a Yisrael. The only valid method of being a Levite (or Kohen) is to have an unbroken tradition, passed from generation to generation, stretching back to the time of Moses. In many Jewish communities, meticulous records were kept throughout the generations to ensure that ancestral lines remained clear. If one has no clear evidence, such as a family tradition, of descending from Levi or Aaron one should assume he/she is a Yisrael. Traditionally, women adopt the status of their husband, thus if a bat Kohen (daughter of a father who is a Kohen) marries a Yisrael, she and her children are Yisraelim.

Today in many synagogues, the first two aliyot (people called up to the Torah) are given to a Kohen and a Levi. Yisraelim, the majority of Jews, are called to the Torah only after the second aliyah."

And of course, Satan knows who the Jews are. Which is why he's worked to destroy them for centuries. God told Abraham that his descendents would be as numerous as the sand on the shore. If Satan can wipe out every Israelite then God would be made into a liar and God couldn't judge Satan.