You're right though
I can't speak without any books/ lectures/ articles/ sources etc.
2016 and nikkas are still blindly nodding their head to anything their Europoid PWI teacher says
A bunch of Youtube videos? Anyone can do that. The first video the guy is talking about the findings of South American "Negroid" findings. Those "Negroids" were NOT Africans, because the remain which is named "Naia" was said to carry Haplogroup D1 which is not even found in Africans, but instead found in Siberia(where the ancestors of Native Americans are from).
Naia appears to have been 15 years old when she wandered into what was then a dry cave. Because of a break in her pelvic bone, they say she likely fell into a pit while searching in the darkness, and died.
Naia's facial structure likely looked more like a modern African than a modern Native American, which is not unexpected for a skeleton from this era. Because of the looks, many have long speculated that the first Americans have no connection to modern Native Americans.
A genetic signature, called haplogroup D1, shows a shared lineage, however. They likely look different from each other today because of more recent evolution.
The researchers discovered the cave in 2007, littered with saber-tooth tiger bones, giant sloths, and other extinct creatures. Naia was deep in the cave, perfectly presented on a ledge with her skull resting on her arm bone.
Naia's 12,000-Year-Old Skeleton Holds Map to Ancient American Genes
Basically Paleao-Americans would have resembled Africans early on as MOST Eurasians did also including Europeans. Does not mean they were genetically African.
As for the videos about Van Sertima, I read his work and again he NEVER says the Olmecs were African themselves.
LIE ONE: - "Van Sertima's expedition allegedly sailed or drifted westward to the Gulf of Mexico where it came in contact with inferior Olmecs. These individuals created Olmec civilization." - De Montellano, Barbour and Haslip-Viera.
THE TRUTH: As far back as 1976, I made my position on this matter very clear. I never said that Africans created or founded American civilization. I said they made contact and all significant contact between two peoples lead to influences. "I think it is necessary to make it clear - since partisan and ethnocentric scholarship seems to be the order of the day - that the emergence of the Negroid face, which the archeological and cultural data overwhelmingly confirm, in no way presupposes the lack of a native originality, the absence of other influences or the automatic eclipse of other faces"-p. 147 of "They Came Before Columbus." See also Journal of African Civilizations, Vol 8, No. 2, 1986 "I cannot subscribe to the notion that civilization suddenly dropped onto the American earth from the Egyptian heaven."
Black People : - Ivan Van Sertima: "Reply to My Critics"
So again Van Sertima NEVER said Africans were the fore founders of the Olmec civilization, but only that they influenced one another. And even so there is very little strong evidence to suggest Nile Valley civilizations traveled to the Americas. There have been no physical remains, Ancient Egyptians who were known for writing down people they met and yet no mention of indigenous Americans, no pre-American items found in Egypt or vice versa,etc.
Now Muslim West Africans reaching the Americas? That's another story which actually has a good argument backed behind it. We actually HAVE historical records of an attempt for that!
As for the video titled, "Black people of Asia". "Black" indigenous people in Asia? So. They're still not African...
The one of African origins of Asians is just silly and all it is just picture spamming. The DNA of Asians Negritos and non-Negritos show them distant from Africans anyway.
The video about the Tamils and Dravidians is also even sillier and the video uploader is citing Clyde Winters who is a hack and not taken serious in acedemia. This is the same guy that tries to argue that their is a connection between Niger-Congo and Dravidian... Yet claim Berber is not African.
And don't even dare say he's not taken serious because he's black. Because while academia in the early days did not agree with Diop, they actually respected him and he is known as advancing opening to Africanist thinking in the field he is in, where as Winters is just a joke.
More importantly you can find Winters on Egyptsearch where no one takes him seriously.
Both Dravidians and Tamils carry clades that are distant from both Africans and Europeans...
Like I said Afrocentrism has a positive part but then sometimes it transmutate into radicalism where it tries to become like Eurocentrism.