Why don't many foreigners believe in the existence of the Yanhuang War against Chiyou?

Why do foreigners have to believe the China people's war against Chiyou? Tell these stories to China people, and most of them will be kept in the dark? The mythical period is the blind spot of every ancient cultural area. Why are these stories passed on from mouth to mouth? Mainly because the story appeared before the writing, which led to the immortality of early history, so there is a problem, that is, until now, the evidence society has no license to check it, so we don't believe it first, and then archaeological proof of the real events behind the story. This is an ancient verification process of all cultures. There must have been a real situation at that time in the Yanhuang War against Chiyou, but because there was no written evidence, it could not be recognized by the world. It needs to be truly restored under archaeological conditions. Needless to say, foreigners will not believe in the early days of other peoples out of thin air.