Adoption of mentally impaired babies

[Whateverist]

How do you guys feel about a couple who, upon learning their unborn baby had a mental impairment such as Down Syndrome (or other), decide to look for a good family to adopt their baby? Apparently there are people out there who feel a calling and have a passion for special needs children, and who specifically look for these types of babies to adopt. 

Let me also say that this pregnant couple has the financial means and plenty of support to take care of a mentally impaired child. But the reason they want to put their child up for adoption is because they feel like emotionally/mentally they just wouldn't be able to handle the grief and heartache that would come from seeing their child struggle through life.   

So, do you think it's wrong for the pregnant couple to choose to put their baby up for adoption in this case? Would you judge them? How do you feel about this type of decision?

(bolded to emphasize this would be about finding a loving adopted family prior to the birth, NOT leaving the child in an orphanage)

I know that I would not want to raise a child with severe mental impairment.  But then I have no desire to raise any child.  If I had wanted to have a child and found out in vitro about the impairment early enough my choice would be to abort.  If someone else chose to carry to term and then hand the baby off to adoptive parents, fine with me.

Edited to add, given your most recent comments, I would be more than fine with it.  If they recognized that they weren't personally equipped to deal with it I suppose they should be applauded for seeing to that the child would be cared for by those who did .. well, assuming they didn't have the guts to just murder it in the womb.