As someone which a daughter with LD, the more important question to me is who raped her?
Also, there's no physical reason why she can't continue, unlike an actual child. She's perfectly capable of delivering a child which can be adopted etc
I'm also the mother of a daughter with LD - severe LD, non verbal so not quite the same thing. However, this did happen to a young woman of our acquaintance (LD with extremely limited communication or understanding) and the circumstances were that she had been taken advantage of by someone who was supposed to be responsible for her welfare.
The woman's mother made the point that if the birth happened and the child was adopted, but then in later years wanted to find her birth mother - who the hell was going to explain it to the child if contact was made?
As she described it "What would I say? This is your mother?"
That would be incredibly traumatic for the adopted child.
It's a dilemma. But I think I would support the judge's decision.