The Ten Tribes, (House of Israel) were taken by the Assrian King, North over the Caucasus Mountains, later into Europe. That is where the word Caucasian came from.
The House of Judah (two tribes) went into captivity to Babylon.
The two Houses have not been rejoined.
There is no proof or basis to claim that the Kurdish Jews are the Ten Tribes.
Where is the evidence, either genetic or linguistic, that European Caucasians are descended from the Ten Lost Tribes?
Try the extensive teaching of Dr. Gene Scott on the subject, a few of which are online at:
http://www.drgenescott.org/thearchives.htm Click on "subject"
Click on "Lost Tribes".
I suspect that in the various online archived tapes you will find more than enough linguistic, historical and archeological confirmations to give you a challenge.
If Ezekiel 37:16-22 is ever to come to pass where Messiah binds the "two sticks" together; one Judah and the other Joseph; in order to make them AGAIN one nation under the throne of David, you are going to have to get the 10 tribed Kingdom of Israel(also called Joseph or Ephraim at the time) out of where ever Yah has scattered them. They were not of Judah then and they cannot be now. The split is recorded in I KIngs 12 and verse 15 carefully tells us "for the cause was from the LORD, that he might perform his saying, which the LORD spake by Ahijah the Shilonite unto Jeroboam the son of Nebat". Verse 24 reiterates it "for this thing (separation into two nations) is from me" That is how you got the nations each of which is actually called by a few names--Judah (2 tribes) can be called House of Judah, Kingdom of Judah, House of David etc.and were later nicknamed Jews. The (10 tribed) Kingdom of Israel was variously called House of Israel, Joseph, Ephraim etc.
Genesis 48:16 records Jacob/Israel giving the sons of Joseph his name--the name the angel pronounced upon him, ISRAEL. ("16 The Angel which redeemed me from all evil, bless the lads; and let my name be named on them, and the name of my fathers Abraham and Isaac; and let them grow into a multitude in the midst of the earth.")
While the 12 tribes were together they were the "whole house of Israel"--the 12 (actually 13 when Levi is included) were the sons of Israel, their father. But when they were separated, since the 10 tribed Kingdom was led by Ephraim--and Manassseh(the two sons of Joseph adopted by Jacob/Israel) the legal name which their father pronounced as theirs was used as their Kingdom name--Israel.
The birthright also was divided by Jacob/Israel. Judah received the sceptre (the right to rule (kingly line) and to make the laws). Gen.49:10
The rest of the entire birthright was given , however, to
the sons of Joseph whose legal name was Israel. (IChronicles 5:1-2) "2 For Judah prevailed above his brethren, and of him came the chief ruler; but THE BIRTHRIGHT was Joseph's:"
This was not a whim on the part of Jacob/Israel. The birthright was to go to the first son but as explained here the 1st son, Rueben, made himself ineligible. Therefore it had to go to the first son of the second wife, Rachel. That was Joseph.
This is serious business. G_d is not promiscuous with His promises nor with their fulfillment.
One doesn't usurp a birthright or transfer it, either. If the birthright was going to a people (as numerous as the sand in the sea or stars in the sky or "great multitude in the midst of the earth" Gen.48:16 above) whom He would "lose" because His omniscience or omnipotence would fail then we are serving no G-d at all.
G_d is faithful to His Word. Study His promise to David in Psalm 89:27-37. As long as there was a sun which rose and a moon as well there would be a King (descendant of David) on a throne/thrones somewhere on earth. Then go to Burke's Peerage or to any official genealogical lineage of the throne of England and read.