And so who do you think is Israel?
If you agree that the among the Jews there are all of the 12 tribes, then who do you think is 'Israel'?
Stop the doubletalking.
I don't know. They have been lost to history. Everyone knew where they were in the first century....Peter and James sent them letters....Josephus said they were yet beyond the Euphrates and of such a large number that no one could estimate it.....and outside of Roman control. Our Lord told the Twelve to go to them [Matthew 10:5-6] and [John 21:15-17].
When the Assyrian Empire imploded (600 B.C.) the ten tribes were without taskmasters. Of course many had received their freedom prior to that and some had settled around the Black Sea [1 Peter 1:1-3]. Paul, as an a Apostle to the Gentiles, was even told to stay away from this area [Acts 16:6-8] as it was the responsibility of Peter and the twelve. Paul may have alluded to them in [Colossians 3:11] as many folks considered them to be Barbarians.....and Scythians are a possibility also.
The Assyrian Empire had been replaced by the Parthians and some folks believe them to be part of the tribes of Israel. I don't know. There are reports of people living in Japan and India who claim to be descendants from the tribes. Who knows?
One thing is for certain....God Knows! [Amos 9:9] For, lo, I will command, and I will sift the house of Israel (All Twelve Tribes) among all nations, like as corn is sifted in a sieve, yet shall not the least grain fall upon the earth.
Two books are devoted to the return of the Jews from Babylon....Ezra and Nehemiah. There is no mention in scripture of the return of the Ten Tribes from Assyria.
Stop the double talking.
I don't double talk about scripture or anything related to it.