This is a wild claim but look at these two videos:
watch from 2:08 that is very very similar to the highlanders original shoulder dance
doesn't this language resemble highlander language i.e. amharic/tigre/oromo
even the cultural clothes the women wear in the first video is similar to what the canfar and ciise wear in djibouti. So it seems us horn of africa groups descended from the berbers.

p.s. I actually should be calling them their proper name: Amazigh
