There is no doubt that The mark that was placed on Cain was leprosy, which biblically is your skin turning from a natural shade of brown to pale; pink which is a shade of red. This really proves that Esau is Cain in the reincarnation/regeneration; Esau was born red.
And the first came out red, all over like an hairy garment; and they called his name Esau.
He was born with a curse from god because having pale/red skin is a curse. Even in Jamaica today we call these Edomite devils red people and in America it is quite common, to call them rednecks.
And the priest shall look on the plague in the skin of the flesh: and [when] the hair in the plague is turned white, and the plague in sight [be] deeper than the skin of his flesh, it [is] a plague of leprosy: and the priest shall look on him, and pronounce him unclean.
And if a leprosy break out abroad in the skin, and the leprosy cover all the skin of [him that hath] the plague from his head even to his foot, wheresoever the priest looketh; 13 Then the priest shall consider: and, behold, if the leprosy have covered all his flesh, he shall pronounce him clean that hath the plague: it is all turned white: he is clean.
Esau/the whiteman, is a clean leper- he is covered from head to foot - but he still is cursed.
The LORD furthermore said to him, "Now put your hand into your bosom." So he put his hand into his bosom, and when he took it out, behold, his hand was leprous like snow.
Who wanted to be a lepor, no one.
But when the cloud had withdrawn from over the tent, behold, Miriam was leprous, as white as snow. As Aaron turned toward Miriam, behold, she was leprous.
2 Kings 5:27
The leprosy therefore of Naaman shall cleave unto thee, and unto thy seed for ever. And he went out from his presence a leper as white as snow.
Can anyone tell me that the white man is not a lepor? Can anyone deny that he is Cain?
2 Kings 15:3-5
3 And he did that which was right in the sight of the LORD, according to all that his father Amaziah had done; 4 Save that the high places were not removed: the people sacrificed and burnt incense still on the high places. 5 And the LORD smote the king, so that he was a leper unto the day of his death, and dwelt in a several house. And Jotham the king's son was over the house, judging the people of the land.
2 Chronicles 26:19-20
19 Then Uzziah was wroth, and had a censer in his hand to burn incense: and while he was wroth with the priests, the leprosy even rose up in his forehead before the priests in the house of the LORD, from beside the incense altar. 20 And Azariah the chief priest, and all the priests, looked upon him, and, behold, he was leprous in his forehead, and they thrust him out from thence; yea, himself hasted also to go out, because the LORD had smitten him.
The lord had smitten him as he had smitten Cain, with the mark of leprosy.
And if that was not enough proof, the biblical kind is always the best: