the Maghrebi people are Natfuians, which Saudis/Yeminis get credit for-- and I will explain. The Natufians are who started farming in Levant. They had Halogroup E, https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5003663/ First found in Morocco. https://www.science.org/content/article/oldest-dna-africa-offers-clues-mysterious-ancient-culture Mostly linked to e1b1. Basically they are found in Morocco at 15,000 years ago and they go to the Levant and create the Oldest City inhabited, Jericho, Palestinian West Bank at 9000BCE, or 11 000 years ago. Jordan, Lebanon, and Palestine is 17-25% e1b1. Gulf Arabs are more related to us than they are to the people in Sham, which tells me there is something going on academically to hide this.(Essentially both groups are more related to Maghreb than they are to eachother..).. "All analyses performed here, using HLA-A,-B, -DRB1, and DQB1 markers support the notion that Saudis along with the Kuwaitis and Yemenis are closely related to North Africans."https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5844529/

"The most plausible explanation for West Arabia and Yemen clustering with Iberian/North Africans is a possible important massive migration that occurred when Sahara underwent desiccation in all directions [92, 93]. Cultural and language relatedness of many Mediterranean languages, including old Iberian and Basque [92], with Berber language are concordant with our genetic findings and Saharan origin hypothesis; also a part of Arabian Peninsula inhabitants (including Yemen) may had been reached by Saharan people. In fact, Malika Hachid who has been studying Saharan and North African Archaeology, culture and rock painting/writing of prehistoric Sahara, even suggests that first known writing alphabet was originated in Sahara. Proto-Berber writing rock characters have been used (very similar to present day used Berber scripts). This Proto-Berber language could have appeared 5,000 years BC [94, 95]." The Syrians, Palestinians, and Phonecians were very active with us in a special place which we had since 6000BC called Canary Islands. The name of Palestine, Land of Purple, comes from there. https://books.google.com/books/about/Biogeography_and_Ecology_in_the_Canary_I.html?id=kDDyCAAAQBAJ (pg52)

I’m not sure what you mean by Alphabet, these Kufic scripts are an Maghrebi creation