The other explanation is that she bore the incarnation of the second person of the Trinity, which says a different thing than saying she bore the second person of the Trinity.
I think I can see the difference. When Mary gave birth to Jesus, she gave birth to only the flesh, and not the Word that was made flesh? That when Jesus died on the cross, it was only the flesh that died, and not the Word that was in the flesh? And that when He said, “before Abraham was, I AM,” He was not speaking as the incarnation of the second person of the Trinity, but as the second person of the Trinity inside that body?
When a person dies, their FLESH dies.
Their soul is still alive and goes either to heaven or Hades to wait until it is thrown into the Lake of Fire.
Or are you another Catholics who believes that when Jesus died, GOD died? Did the second person of the Trinity die when His body died?