I like technicalities. I think it is offensive for definitions to be thrown around, when they are the ones who chose the name of Israel instead of Judah.I have seen not real efforts to find and identify other members of the sons of Jacobs descendants. It is always about the Jews.
Those who historically professed allegiance to the Teachings of Moses and Temple in Jerusalem in the Kingdom of Judea are called Jews. Even if they are converts with no DNA from Jacob. And there are Ethiopians who connect themselves to the tribe of Dan (and who count Levites and Kohanim among them), and B’nei Menashe of India..