You can't be serious right now? War yaa waxaan ila arko?
May tiri is a foundation created by the conquered people. (Oromos/Bantus)
Rahaweyn although ethnically Somali, have distant cousins in Oromia. Hence why they speak a different dialect.
Which is the reason their language is may tiri, and not maxaa tiri.
People were assimilated into clans. Adopting our language. Our customs and religion.
Ex: Garre people. Once Oromo, now Somali.
Garre was never Oromo, just because they border Oromos and a share of them speaks Oromo now doesn't make them Oromo in descent. You have to differentiate between language and ethnicity.
Quranyow are Dir in ancestry, so they are full fledged Somalis.
Language is language, ancestry is ancestry.
Garre split strictly into two branches, Tuuf and Quranyow. Tuf are neither Hawiye or Raxanweyn. They are related to Galjeecel and Degoodia in belonging to Gardheere Samaale according to their oral history. Quranyow (religious nickname) Maxamed Xiniftere Mahe Dir was a Wadaad who married Tuufs daughter and that is how the two became alligned. Gunther Schlee did a lot of research on the Garres and his findings also support their oral abtirsi. Only in the South do they come under the Raxanweyn confederation due to their isolation from other Garres and assimilation into the Digil umbrella. The Garres in Mandheera district are mostly Quranyow whilst the ones in Moyaale/Marsabit are Tuuf.
The following is an abtirsi submitted to James Dahl by a Digil Garre Quranyow individual.
http://www.abtirsi.com/forum/viewtopic.php?f=2&t=915&abtirsiLang=1
The following is a Somali girl on Ummahforum, stating she is Garre(Quranyow) and Dir.
http://www.ummah.com/forum/showthread.php?316357-Are-Somalis-Arab/page2
Gunther Schlee source
Another source stating Quranyow is Dir in ancestry.
Refrain from accusing them of being assimilated Oromos, for they are true Somalis.