This video is disregarding another important factor: the studies of the finnish genome are not representative of the modern nation of Finland. This is because modern Finns are not 100% finnish in terms of genetics. During the middle ages Finland was a part of Sweden and briefly belonged to the Kalmar Union and Denmark as well. And long before that the northern germanic tribes had influence in southwestern Finland. If you were to take a random western Finn and subject them to a gene test, then they would most likely be close to 50% Scandinavian, and on the coasts they would probably be less than 50% finnish in terms of genes. And the least Finnic Finns can be found in the southwestern parts of Finland, where the people are a mix of Finnic, Scandinavian and widely Germanic peoples. You may debate about the origin of the finnish genome however you wish, but the reality is that all "pure" Finns are six feet under, and have been for a long time. We, who remain are the hybrid offspring of them and the scandinavians.