The slogan of national democratic revolution put forward by Sun Yat-sen is "Expulsion of Tatars, Restoration of China, Establishment of the Republic of China, and Equal Distribution of Power". China was originally a multi-ethnic country with the Han nationality as the main body, but it was wiped out by Jurchen in A.D. 1644, and there was no China in the world. In order to call for national awakening, he rose up to overthrow the Manchu regime and paid homage to the Yellow Emperor, the ancestor of Chinese humanity.
This is also the need of the revolution and a means to an end.