Hi to all NOmads.
I draw two possible assumptions from this inductive reasoning. The Sheikh is perhaps a patriot who doesn't like to see his brothers and sisters leave the Somali diversity, so he is appealing to religious tenets that unity is important in sustaining the foundations of brotherhood.
I have also seen this type of scenerio several times, especially during the special friday sermon, there are Sheikhs who publicize their distaste for our division, emphasizing the existance of various numerous social communities in every city overseas. I think it is normal to infuse politics in sermons.