Quetzalcoatl was also known as Thoth, Ningishzidda, or Hermes.

He was the son of Ereshkigal(Hela/Persephone) and Enki Ea(Odin/Ptah/Kukulcan).

When the Vanir Anunnaki of Sirius conquered the Aesir Anunnaki lead by Enki Ea and took over Earth, Ereshkigal was given the position of ruler of the underworld or Abzu which were the mines in Southern Africa that reached down into the Inner Earth as well. Enki Ea, the previous ruler of Earth, was sent with her to train her at the position, during that time they had an affair and Ningishzidda(Thoth/Quetzalcoatl) was born.

Ningishzidda was Enki Ea/Odin's sixth eldest son, but it was his little brother that was the incarnation of Christ.

Odin's seventh son, Christ Baldur(Dumuzi) was the incarnation of Christ during the time of Atlantis. His death is what started the second Aesir vs Vanir war that lead to the destruction of Atlantis.

When Atlantis fell and after the Flood, Egypt was the primary territory given to Ningishzidda/Thoth.

Shortly after the Flood, Ningishzidda/Thoth's eldest brother Thor/Marduk/Ra attacked Egypt and took it over for himself. Thoth was chased out and ended up fleeing and taking over the territory of Central America where he became known as Quetzalcoatl. Thor/Marduk/Ra split the kingdom of Egypt between two of his sons, Osiris(Modi) and Set(Magni) who ruled Egypt until around 4000 years ago, when following the Marduk Rebellion Marduk was overthrown by the Draco, Reptilians and Greys he allied with to chase the other Anunnaki off of Earth. This was the period when Egypt stopped worshiping the old gods of Ra and Osiris and began to worship the reptilian Ogdoad gods.

So Quetzalcoatl wasn't Christ, he was Christ's brother.