Ulfric isn't a Dragonborn.He just trained years at Hrothgar to use the voice.While Dragonborn have an innate ability to use the voice
Actually, Ulfric has no compassion for people that aren't Nords. The goal of the Stormcloaks is very isolationist and racist.Faithless Imperial dogs, we shall rid you of our land and claim it as our own! Any who call Skyrim their home, be it Nord or not; the Stormcloaks welcome you with open arms. RISE up true sons and daughters of Skyrim, fight the Empire and their elven masters!
Actually, Ulfric has no compassion for people that aren't Nords. The goal of the Stormcloaks is very isolationist and racist.