[ssivark]

Interesting discussion, even though some responses are emotionally charged, understandably :-)

IMHO, the key ethical question is, how can a person (the child in question) be made party to a contract in which they have no input?

Is it unreasonable to give them full/veto choice over the matter of contacting genetic parents -- because that is the only place in the story where they have any agency? Donors & receivers have full agency at the point of exchange.

Further, if one is willing to conceptually agree that a child might have needs/rights beyond what parents (either adoptive or biological) might be willing to provide for, then one is necessarily led to seek & consider data on possible harms (emotional or otherwise) to children who do not have the choice to contact their biological parents.