“Mary was subordinate to him because she is not God.”
So when the Holy Writ says:
He was obedient to them. {Lk 2:51}
The Holy Writ simply gets it wrong? Odd that point of view. Certainly not Biblical.
It says, "And he went down with them and came to Nazareth and was submissive to them."
When he was 12, he "was submissive to them". "Was" is past tense, not future.