Nah. I can't speak for other people but while my family and others have told me about the Arab myth they also know it's just sheeko. Even taking into account the Arab daddy myth from a 1000 years ago Somalis don't claim to be Arab. We know we're just Somali. Even Somalis historically were hostile to Arabs in our land even they bought into the myth.Somalis back in Somalia are pretty stupid.. They think that different tribes equals being radically different and they still believe in myths like Isaaq and Darod being Banu Hashim. These so-called confused Westerners on here are closer to reality than most folk in Somalia.
Either way Somalis being a part of language family isn't the issue any more than semites being a part of a language family, but creating kinship based on that? . Talking about I'm a cushite lol. People don't talk like this. It's exclusively young Somalis talking about this. If people want to know your language family they can look it up.