[imardmd1]

"When Jesus therefore saw his mother, and the disciple
standing by, whom he loved, he saith unto his mother, Woman,
behold thy son! Then saith he to the disciple, Behold thy
mother! And from that hour that disciple took her unto his
own home" (Jn. 19:26,27 AV).

Virtual son, virtual mother. We don't know all the reasons why, and it would be
impertinent and presumptuous to innovate a doctrine from this passage.

[agere_contra]

Virtual son, virtual mother. We don't know all the reasons why, and it would be impertinent and presumptuous to innovate a doctrine from this passage.

Christ declared their new relationship from the throne of the Cross.

But - according to you - He didn't mean anything important by it. If I understand you correctly; it was just one of those virtual things that Jesus did.

But we know what happened next. 'From that hour the disciple took her into his own household'.

This would have been a very odd thing to do if Mary had other children.