No, they don'tYou should marry a Arab that’s how most of the Levant and Maghreb become Arab, Arabs have a one drop rule for being Arab
If you have a Arab spouse your kids could easily speak ArabicMost Arabs are arabised. The levent were originally Phoenicians ect. The Maghreb are orginally Berber. The Sudanese are mostly of Nubian heritage. However, what now makes them Arab is because they speak the Arabic language. If Somalis spoke Arabic as a native tongue, then yes they could call themselves Arab, but since we don't, seeing yourself as Arab is embarrassing.
Most Arabs are Arabised. The levent were originally Phoenicians ect. The Maghreb are orginally Berber. The Sudanese are mostly of Nubian heritage. However, what now makes them Arab is because they speak the Arabic language. If Somalis spoke Arabic as a native tongue, then yes they could call themselves Arab, but since we don't, seeing yourself as Arab is embarrassing.
To put a little nuance to this.. most of the Arabized Arabs were racially kind of close to the original Arabs.
Canaanites, Phoenicians, Mesopotamians, Ancient Egyptians, Ancient Lybians/Berbers were all kind of close racially to the original Arabs (in a global context).
It is mainly the Sudanese and to a lesser degree Somalis who get questioned about their Arabness due to the larger racial distance and it being more obvious.
Even then, Sudanese have Western Eurasian DNA with some Sudanese actually descending from Arab tribes from Arabia (correct me if i'm wrong). I think it's mosly in the West they question Sudanese people because of BLM, identity politics ect, which is dumb as people seem to have no issues with seeing Black Latinos as Latinos. In the Middle East, people don't really question the Arabness of the Sudanese.