Those quotes don’t say anything about Jesus being born to a sinful human.
For truly he took not on him the nature of angels; but he took on him the seed of Abraham. For this reason he had to be made like them, fully human in every way, in order that he might become a merciful and faithful high priest in service to God, and that he might make atonement for the sins of the people. (Hebrews 2:16-17)
What does "in every way" mean if not that he was born exactly like we all are? Hebrews 4:15 goes on to say:
For we do not have a high priest who is unable to empathize with our weaknesses, but we have one who has been tempted in every way, just as we are--yet he did not sin.
The doctrine of Mary, the mother of Jesus, also having to be "sinless" in order to give birth to him is not supported by Scripture nor by simple reason. In no way does this deny Mary the respect and honor she deserves due to her faithfulness and bravery. There just is no reason why such a thing "had" to happen in order for Jesus to be our High Priest and Savior/Redeemer. In fact, he had to experience the SAME things we all do including growing up, getting along with parents and family members, puberty, ALL of it. And he DID, he went through it all and never, not even once, sinned. That's why he could be the one sacrifice for the sins of all mankind.
Or being assisted by a sinful midwife; either.