If Jesus is not the "seed of the woman," He is not the Son of Man, heck, He's not even Jewish, and He's not the fulfillment of prophecy.
As for Mary and Joseph's marriage, I would argue it was unique inasmuch as they were not pledged exclusively, procreatively, to each other, as would be the the case in any other marriage.
IF (big IF) you maintain that they were exclusively vowed to each other, as in any normal marriage, you'd have to countenance that God based His holy Incarnation on their violated vows.
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The “Woman” is the believing seed of Abraham.
They are called Israel.
Yeshua, and his mother are part of that seed.
Mary is never called “The Woman” in scripture.
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