If someone states a position on theological aspects, then must be ready to accept that others will disagree on theological grounds.
I find most amusing the attempt to claim scientific authority (like assertions on Jesus’ and Mary’s DNA) for theological burblings.
I find most disturbing the open display of heresy from the Protestants here.
A rather crude statement.
Jesus was Mary's son. He received His DNA from Mary - the Holy Spirit "overshadowed" her, and did the rest. Mary is the Mother of God by virtue of the Hypostatic Union. If one does not believe in the Hypostatic Union, then one does not believe that Jesus Christ is true God and true man. End of story.