I've said this before but anyway, I think it's worth saying again- my adopted children are nothing like me. If they had been brought up by another family, including their birth family, they would be largely the same people, only having lived very different lives.
The idea that you get "your child" from a donor egg is crazy imo. Same with sperm donation. You get to act as parents. You can even carry the baby with egg donation. You can love the child, give it a veneer of your family's interests and values, but if it were born to and raised by the egg donor, it would be basically the same child.
I just feel that people are being misinformed if they use egg donor eggs and think the baby is "theirs". It would imo be much more helpful to everyone involved to be open about the facts around the lack of genetic connection and arrange for the genetic connection which does exist to be honoured.
Re the idea that donors may not want to be involved in the child's life, imo that is not ok. You shouldn't be able to cast your dna to the wind then just ignore the consequences ie a real life child.
I should add that I'm not against eggvor sperm donation per se. What I am against is this idea that it doesn't matter, that it's just a sort of basic ingredient which is irrelevant compared with the nurture of the child.
It IS nature over nurture and imo we should accept that, drop the pretence that it doesn't matter, set things up from the beginning that the child is told about the donor and not at 18, expect donors to be at least minimally involved through letterbox arrangements like in adoption, and get parents to understand that there are complex issues going on here which need careful handling, not just the "you are our child" message they often get.
Btw, as with surrogacy, donor conception has always been driven by the adults, with medics and organised groups advocating for what they want. There has been no one sticking up for the children - but now some of these children are adults and are themselves grouping and saying it's not ok.
We saw this with adoption. Up until the 70s, children's rights and needs were very much not considered - it was all about the adults wanting children. This has successfully been turned round. The focus is always on the needs of the child. This happened partly because adoptees grouped and demanded change, but also because there was a framework involving the courts, social workers etc to withstand the demands being made by the adults trying to adopt.
With surrogacy and egg donation ti's framework is much, much less solid, and what does exist is so tilted in favour of the adults.
Re the comments about people doing what they want with their bodies, well, it is different here, we have to be careful because a child is involved.