We can make a similar argument regarding Zeila being Arab. The Qiblatayn was built by Arabs, the famous landmark tomb is of an Arab Sheikh.
Does this mean Zeila is not Somali anymore? Or we can't claim it?
Zelia wasn't conquered and built up by Arabians. You can't compare Arab merchants in Somalia with romans and sabeans.
There was Somali merchants in Arabia and a Somali Shiekh who founded a city in Yemen.
"The first Zaylaī of whom al-Sarğī dedicates a complete biography is the famous Abū al'Abbas Ahmad b. 'Umar, known as Sulţän al-'arifin. He left his country on the African coast (barr al'ağam) when he was 17 years old and reached the coastal village of al-Mahmul, in the Wādī Mür region of Yemen.. it was the latter's grandfather, Muhammad, and his brother 'Umar, Ahmad's father, who left "Abyssinia". Having reached the Yemeni shores, the two brothers separated: Muhammad headed north, where his nephew Ali became "sahib" of the village of al-Salāma; 'Umar turned south and his descendants, starting with his son Ahmad, settled in al Luhayya.. It is impossible, in the current state of our knowledge, to determine the exact date of this emigration: in fact the only other useful date known to us is that of the death of Ahmad b. 'Umar, 704 (1304-1305). Assuming, purely conjecturally, that Ahmad lived for about seventy years, we could place his departure from the African coast (which occurred when he was 17 years old) around 650 (1252-1253)."
- According to the Yemeni historian Al-Sergi; Al-Luhayyah was founded by the Somali Sheikh 'Umar Zayla-ī at around 1250AD.