I thought the people of Berbera and Hargeisa were Arab too why are they frustrated bloody hell.
This is very old news and not only that you're take on it is very off the mark. Although the locals have legitimate gripes, the Arab dude in this instance has done nothing illegal. He has a license and a contract with the Somaliland government to mine the area.
The legitimate gripes that locals have is that a project near their traditional lands is bearing no fruit for them. Bear in mind the land the Arab is mining is a mountainous terrain with little to no vegetation, so it is not their grazing land that is affected. However, the Somaliland government should be putting measures in place whereby the locals benefit from a project like this anyway. It would be very easy for examples that insist that low-skill jobs are given to locals.
My neighbour is from the area, and is very well informed as his brothers still live there.