The reason why this issue didn’t come to the fore until people started wanting to change the wording of birth certificates, opening up who was allowed to be named on it to biologically unrelated people, and wanting to change ‘mother to father’ and vice versa, isn’t ‘homophobia’ or ‘transphobia’.
The fact that heterosexuals have quietly been using donor gametes and naming biologically unrelated adults on birth certificates, is because registering of births began before the gamete donation and implantation industry began and before DNA testing was possible. It was always taken to be truthful that the man married to the mother, or attending the birth registration with her, really was the father of the registered child and that the woman who gave birth used her own gametes. This assumption was never updated when donors started to be used, presumably because it was all done very quietly, privately, and no one really knew about the scale of it and the ethics and consequences have never been properly explored. I was under the impression that it was extremely rare.
Obviously this ‘quietly/privately’ system of registering a birth does not work for same sex couples who want a biologically unrelated partner to be registered as a parent on the birth certificate, because there can be no assumption that the opposite sex gamete in the equation belongs to the partner who is married or civil partner to, or attends with, the registering parent. It is the push from same sex couples, or parents who identify as being a member of the opposite sex, to change how births are registered which has pushed this issue to the fore. It is no longer a ‘quietly/privately’ issue as a result of this push.
The reason why people, such as myself, are openly objecting to this now, is because we disagree with the changes, disagree with the lack of child-centredness around donor gametes and surrogacy, disagree with routine omissions and falsehoods on a child’s birth certificate to suit the wishes and convenience of the adults pushing for them. The fact that these people pushing for the changes are lesbian, gay and who identify as ‘trans’ is irrelevant to why I, and presumably others object to them.
Its lazy to call objections to something homophobic or transphobic, just because it is someone homosexual or ‘trans’-identified who is doing it.