re: #2 Destro

What you left out:

A 2010 study by Behar et al. on the Genome-wide structure of Jews observed that the Beta Israel had similar levels of the Middle Eastern genetic clusters as the Semitic-speaking Tigreans and Amharas. Indeed, compared to the Cushitic-speaking Oromos, who are the largest ethnic group in Ethiopia, the Beta Israel had higher levels of Middle Eastern admixture.[58]