“Mary merely was the mechanism that gave Him human flesh.”
No. Mary was a person, not a mechanism.
True; but since GOD made human flesh from the dust of the earth; Jesus could also have had His human body made the same way. The Godhead made a decision to enter the world through Mary's body; and we all all glad that He did.
But I will in no way accept ANY man's reasoning as to WHY it happened the way it did.
Isaiah 55:9
“As the heavens are higher than the earth,
so are my ways higher than your ways
and my thoughts than your thoughts.