There is this video I found in which it claims olmecs are black. It made me slam my head and I loss quite the brain cells. He uses Van Sertimas arguments. He compares the Olmecs to Nubians which is stupid since Nubian phenotypes show thin noses. It's a pretty long video and if someone can type a in a small rebuttal that would be nice. Here are the main points he makes.
Olmec Similarities to Nubians
Claims that the Olmec Heads depicting Black features was the same time period in which the first Olmec Hieroglyphics and Pyramids appeared.
Such as
-Colors used
-Prognathism
-Tattoos
-Tribal Markings
-Tribal Scarification
-Kinky Hair
-Broad Nose
-Egyptian Style Military Accessories
Compares Olmecs to Egyptians
Claims they had Black Gods
Claims Native Americans are Black and Chinese Mixed
Claims Mali and Moors reached America around 1311 and claims Washitaw Moors were the Original Americans starting around 51:54
If you feel rebutting the the whole video, that would be nice.
you may want to have a look at /r/badhistory