It has also been esabltished that South Arabian J-M267 is of northern originI am not doubting that the primitive origin of J1 is somewhere in the North or maybe Africa. However, The younger more advanced progressive downstream lineages of J1 are Semitic, thats why they were able to prosper & become the dominant subclades in J1, just like other subclades dominated in other lineages ie: E1b1b-M78, G2-P15 & R1b-M269