But yes, they do. The Jews, wherever they are.
It's an important question. I await his answer. Thanks.
You refered me to the post of his that you had a problem with. That brings the issue into my perview. And I say his profile page and his prior posts have answered your question. Do a search by poster on his name and read his posts. 
I appreciate your point of view. However, I can't tell from LostTribe's posts and links whom he believes constitutes the Tribe Of Judah.
My question for him is simple:
"Do you believe the people living in Israel today who claim to be Jews are Israelites, descended from Jacob?"
In other words, I am wondering if he believes that the people on earth today who claim to be Jews are Jews, of the Tribe Of Judah, descendants of Jacob; or, does LostTribe believe them to be imposters?
I'm not trying to smear him; I haven't prejudged him. I just want to know the answer, and it's an answer he can give me as soon as he reads my myriad posts to him on this topic.
The issue of The Lost Tribes is used by many who deny the lineage of modern-day Jews from Jacob. I want to know where LostTribe stands on this issue, and he should have no problem answering the question clearly, right here, without referring me to links or previous posts. After all, he expresses his viewpoint about (and his screen name reflects) his interest in Lost Tribe history theory with great verve and gusto. He need not shy away from my question set forth right here.