It is said that those with two nails on their little toes are pure Han Chinese. Is this true?

It is said that during the Song Dynasty, Henan, Shandong and other places were sparsely populated. The Song government encouraged immigration. Farmers in the Datongshu area of ??Shanxi were unwilling to immigrate and fled one after another. So the official issued an order: All the people should gather under the big tung tree at a certain time and have a knife cut on the nail of their little toe. Those who made the knife would be exempted from immigration. Many kind-hearted people believed it and stretched out their feet obediently. However, more than half a month later, an order was issued stating that anyone with a split toe nail must immigrate. Because of this mark, the people could not hide it, and emigration was a foregone conclusion. Therefore, these immigrants from Datongshu, Shanxi became the ancestors of people with two nails on their little toes. They have been passed down from generation to generation until now, so it cannot be proved that they are pure Han Chinese.

I have one too