How could Joseph Smith be from the tribe of Efraim?
... if that tribe was lost 2000+ yrs ago and ant even Jews can trace it?
The lost tribe of Ephraim.. Israel be lives has actually surfaced in India, two towns with people practicing as Jews for thousands of years... I'd say that ISN'T America folks.
If you look at the prophecy about Efriam, it seems to be indicating America. If the tribe was 'lost' that doesn't mean it doesn't exist, it just means that we don't know exactly where it is. I can't prove he isn't.
The fact remains that today not even a single Jew can prove his or her genealogy. Because, everything was destroyed by Romans in 66 CE.
The rest is a legend and stories. Modern day Jews can only believe that they are Jews and that is fair enough. There is nothing wrong with that.