I think children should have as much info as possible about their genetics AND (ideally) have two adults with legal parental responsibility.
(and I have raised a baby from birth to adulthood as a single mum and the only parent with legal responsibility so absolutely no shade on lone parents intended! We can manage and mitigate the non-ideal situations only if we first acknowledge the best case scenario)
Primary parental responsibility should always be with the mother and by mother I mean ‘woman who grew the baby inside her’ and if she relinquishes that responsibility it should be done carefully and without coercion unless she is proven to be incapable of caring for the child via the usual social services/family courts process.
Women (of any sexual orientation) who take on an active parenting role without giving birth themselves are incredibly important to the children they parent and those women should be able to achieve legal parental responsibility (and fill a ‘mother’ social role) whether they become parents via adoption, marriage/civil partnership or by planning a child with a female partner via donor insemination.
And all children (and future historians/genealogical researchers!) have a right to the primary facts of their birth (the date, place of birth and the woman they came out of!) being accurately recorded
And if we need an extra way to record genetic info (due to gamete donation) and parental responsibility info (because the legal parents are not the biological parents) then we should figure out the best way to do that, because the piecemeal, periodic updates have resulted in something that doesn’t really make much sense.
Clearly defining what we want to be recorded (and why those things should be recorded) will make it obvious if/when objections are made due to prejudice (and thus will prevent the current misunderstandings we tend to get stuck on when discussing these topics).
FWIW I believe that statistically (and anecdotally!) children raised by two women in a committed lesbian
relationship do well by all the usual markers used to determine such things (eg education, health, eventual adult employment etc) and as such there is no logical reason to deny female co parents* legal parental responsibility for babies born to their wives/female partners (and if the child’s genetic info is made available for health reasons and the anon donor’s identity is made available to the child at adulthood the recognised drawbacks associated with not being raised by both biological parents are largely mitigated).
*I haven’t paid much attention to similar stats for gay male parents partly because there isn’t much long term data. Women have been able to have and raise babies with almost no male involvement since the dawn of time (albeit usually battling both state and social disapproval) but historically men raising babies with almost no female involvement has been a much rarer phenomenon (and presumably still is pretty rare as surrogacy is largely a luxury service available only to the very well off).