If I say Biology doesn't matter, it shouldn't be insulting. And having your kids - who you have invested in say that someone else is their father would hurt anybody - a biological Dad or an adoptive Dad. It speaks more to the love you have for them that it would be devastating. Saying biology doesn't matter shoult in no way reduce you to nothing.
I understand wanting to see similar genetic traits in your child. I have one biological and 2 adopted children, so I understand both situations. But most of the time, when someone says biology doesn't matter, it means that it really doesn't matter in the feelings they have for those children.
ok skater thank you for pointing that out, especially the last line that makes a lot of sense, and I think you are correct they are saying it as far as their situation and their love