I agree with points. The part of Somalia that is arabized comes from a) being neighbours geographically b) refugees and colonization (BOTH)
For example you can argue America is influenced by Hispanic culture why? Thr geography. California, Texas etc this is one of the most powerful nations in the world. If theu cant avoid it, imagine Somalis in Somalis and the diaspora. It makes no sense that we wouldn't be influenced by other Africans, M.E etc. We know own tacos are Mexican/Hispanic but how will humans know in thousands of years from now. Not to mention California was once Hispanic. So you can be influenced as a ruler not just from being a immigrant. So who really brought halwa, henna, our clothing being arabized etc. Terms in our language including the most infamous Somali slang: wallahi. How can you not see the imfluence? Or Somali youths using the n word etc.
The pro-black people think we adopted M.E culture from being ruled and enslaved. Its more nuanced than that. The natives for example were conquered from many different angles. You had the merchants, the religion fanatics who wanted them to convert, refugees (Europeans fleeing disease, poverty etc).
Bantus aren't that influential like other Somalis but I would argue black americans are. This entire thread is about us being told we are slaves to Arabs THATS IDEOLOGICAL COLONIZATION. And many Somalis including bantus are believing this. This is how black supremacy works. Either way Somalis dont win because we will be placed at the bottom of Blacks or the bottom of Arabs. We have to maintain our own ideology which impossible to do in a diaspora.
Interracial couples barely make a dent in this ideological colonization theu are just the byproduct of our surroundings. If white people in America couldn't avoid Interracial dating/marriages how the hell can we and I mean both genders? Go read on Italians in America in the 1900s and you will se much similarities. Theu hated IR dating. Hell they still do. Look as Asian women etc.
Your last paragraph is fascinating because thats what China is trying to do for decades now. Its hard:
China's tightening grip on Islam revealed
news.sky.com
And that is happening in one of the most powerful nations. But you are correct but how is answer without the funds? Right now our biggest defense is language being a barrior (not the diasporas). They did this shit to every diaspora, its called assimilation. We aren't the first not the last.