What do we know about Yemen...?

Yemen has the largest Jewish population anywhere in the Arabian peninsular outside of Israel and they suffer absolutely no persecution whatsoever.

They are about 900 miles away from Jerusalem and the Law of Return has been in force for over 60 years, yet they feel no need to seek refuge there.

Yemen is ruled by tribalism - not Islamism. And it's quite obvious that Israel is engaged in longstanding strategic tribal alliances down there, dating back to Nasser's occupation in the early 60s, prior to the 6 Day War.