Why do you want to claim another peoples history. Kush has nothing to do with Somalis, if that was the case who inhabited the horn and traded with the Romans, Greeks, Arabs, Egyptians, etc.Yes that's what most historians believe but somalis dont wanna admit it coz if they do, that means land of punt wasnt really them.
The reason why some historians say we came from kush is mainly coz we speak a cushitic language, oromos and habesha are also stated to be from kush