Both E-M35 and J1 are far too old to be Somali, Arab, Semitic or Cushitic. When these sub clades were born non of today’s modern ethnicities existed.
E-M35 was most likely born near the Red Sea on the African coast but entered Arabia extremely early on in history. Till this day it’s the 2nd largest Arab lineage in Arabia. J1 came to Arabia from the Caucuses/Zargos region and we know this because there are some of the oldest J1 branches in the Caucuses, Anatolia etc.
When J1 entered Arabia from the Zagros region it brought with it Iranian Neolithic ancestry to the region. This is why Arabs have that component. The Natufian component however is much more dominant in Arabia and that’s because before J1 entered Arabia during the chalcolithic period it was already inhabited by hunter and gatheres with Natufian like blood and we all know from ancient samples taken in the levant that the Natufians were mostly Eb1b (E-M35).
Also all the E1b1b groups have Natufian related ancestry similar to Arabs but not all J1 groups have Natufian related ancestry.
Also the Semitic language is Afro Asiatic and matches the distribution of E-M35 perfectly. This is why it’s widely accepted that E-M123 or its child E-M34 is really the original Semitic group and influenced J1-P58, P56 when they reached the southern Levant and Arabia.
Afro Asiatic map
View attachment 325663
Natufian related ancestry map
View attachment 325664
And the E-M35 map
View attachment 325665