Did you really just try to refute a scientific study with random people's results from fukking 23andme?
23andme is a half-assed corporate project that doesn't go nearly as deep as any study, and they are only showing you where your family is from, not what the deeper ancestry of that region is. 23andme tells people they're English even though the native people of England were wiped over over 2000 years ago and it was repopulated with Celts and Germanics from central Europe. "Anglo-Saxon" is literally the name of two Germanic tribes. Using 23andme to refute a scientific study is like using a half-assed wikipedia page to refute the actual sources the wikipedia page was based on.
When 23andme tells someone they're Ethiopian all they're telling them is that their people group primarily comes from Ethiopia. Doesn't say jack shyt about where that people group originated from or what other groups they're descended from.
That's not just "genetic similarities" though, that's actual ancient genetic subpopulations so Ethiopians definitely are products of a mix according to that study's results.
Now like I said earlier in the thread, I think the Arab subpopulation originated in Africa, so at least in that you're partly right. But they were separate from the other groups. If you look at the study, tens of thousands of years ago the East African and Omotic groups in East Africa split, then late the Arab and North African groups split off of the Omotic group, then the Omotic group further mixed with the Arab group and the East African group further mixed with the North African group before all four groups stabilized. Then later, AFTER that, the more "pure" Arabs migrated north and settled across the Middle East (today, the most pure Arabian group is Qatar), whereas the most "pure" Northern African group migrated west and settled across north Africa (today, the most pure north African group is Tunisia). The most pure "East African" group is Dinka-Nuer, which is 80% East African descended with minor admixtures from west Africa and central Africa. The most pure "Omotic" group are the Ari people of Ethiopia, who are 90% Omotic with very minor East African and Arab admixture. Most Ethiopians are a mix of all of those without even coming close to 50% of any one group.
This is what Ari people look like, 80% Omotic DNA:
Here are what Dinka-Nuer people look like, 90% East African DNA:
Here are what Qatari people look like, 80% Arabian NDA:
And then you have Tigray people of Ethiopia, which are about 40% Arabian, 30% East African, 20% Omotic, and 10% North African:
Most folk get confused because, due to the metric that White Europeans imposed, everything to them is about skin color. But skin color is only determined by a handful of genes, and a couple genes for dark color can override others. But in reality genetics is far more complicated than "what color are you".
The only metric they employed was that anything of historical greatness anywhere in the world has to automatically be prescribed to the White man.
The reason Europeans were so quick to declare Ethiopians and Egyptians as European was because of the cultural significance of major religions being developed there. They worship Christianity and Jeduism, which they did not create themselves.