You obviously don’t know very much about what Roman Catholics and Orthodox Christians believe about the Holy Theotokos and Ever-Virgin Mary. You probably don’t even know the difference between the “Immaculate Conception” and the “Virgin Birth”. I’m not going to waste any more of my breath arguing theology with you, but why do you suppose one of Jesus’ disciples took care of Mary after the Crucifiction instead of her own supposed children, if as you say, she had any?
Correction: Crucifixion.