People are very much lost when it comes to descendants of Abraham actually inhabiting the promised land.
There is not a Hebrew alive today that can legitimately trace their heritage back to a specific tribe... therefore those Hebrews inhabiting the promised land today are doing it in direct violation of the law.
Even though they are inhabiting the land and call themselves Israel, they are not the Israel of the Old Testament... and are owed nothing by God as far as promises goes... if anything, they are cursed by him.
So now you and yours are experts in DNA technology, have exhausted it the world over, and found it wanting, lol
The lol is to your books based reasoning...
Where a person learns how to reason about things through books about this and that, and never really learns to properly dissect a thing from within its own scope, setting and context.
The result?
Yours and your kind's never ending, ever the same, "one size fits all" type of reasoning about all things - through said same lens.