I'm not grouping anybody. I have met about 30 first mums online, 4 irl. I know from hearing their stories, and from knowing DD2 and DS mum that everyone is different. Some were neglectful, some would have been fantastic parents, given the chance. And obviously not all adoptive parents are good parents. Some are terible, that's why Nubia Barahona's face has been plastered over the media, poor thing :( Being a member of the triad is just one part of you, and does not define you in any way, I think most sensible people know that, and if they don't they're not worth your time anyway
Most people are the best parents they can be to their children. That includes nearly all adoptive parents, and most first mums as well! You are the best mum for your young children, and your sons parents are the best parents they can be for your son, and the ones who know him better than anyone else in the world does right now. It's obvious from your posts that you think of your son, and you want him to be happy, I don't think anyone could dispute that. BUT I do think, please don't take this as an attack as it's not, you are underestimating the impact your sons past could have on him, as well as the emotions he will go through. He has suffered a lot of trauma, first from being removed from you and placed in care, then building a bond with his carers and being taken away from them and moving to his parents! That's if he only had one foster carer. The impact of being moved alone can be huge, and cause massive difficulties. I know a child who has quite severe behavior problems and emotional difficulties, but was removed at birth, and had only one foster carer. How straightforward the circumstances which led to adoption were, is not always a good indicator of how secure the child will be. Indeed, even some adoptees relinquished at birth have huge difficulties which make life difficult for them - I know one online who says if they were given the choice, they would have chosen to be aborted, because being alive and adopted is far worse (for them) than having never existed at all. And this person says their adoptive parents were wonderful, great parents. I haven't yet met any disabled person who wishes they never existed. You just can't assume that having great parents will anyone happy and secure on it's own
Take my son, for exmaple, he was with a very good carer from birth, his mum wanted first to keep him, then later chose to allow an adoption to go through without contesting, and she asked me to adopt him, out of all the adoptive families of her children. He was 23 months old when he came home. He was never abused or negelcted. BUT he has issues. Bad seperation anxiety, and clinginess for instance. Not the usual clinginess other children have, but based on his past. He has other issues too. I have developed ways of managing him, and making him feel safe and secure with me. Your sons parents will have done the same - worked out what makes him feel secure and safe, what does not. I know you want to develop a good relationship with your son and his parents, but they won't do anything which causes him great upset or conflicted feelings, or which makes him feel insecure or unsafe. Your son might be happy to recieve gifts, but you don't know if he reacted badly in any other way, or whether he felt upset or insecure afterwards. I'm not suggesting you need to stop writing if the parents want you to write via the letterbox, in fact I think I would say writing by letterbox is the best way forward if your son still wants to continue getting letters. But I would do as his adoptive parents ask, because they will be doing what they know will help your son the most. They know him the best. That's nothing against you, but they do him better than you do, just like you know your two younger children better than anyone else could ever do
As I said before, you sound lovely and I don't group birth mums any more than I group black people or Hindus!! Just one part of you, and you don't sound remotely abusive to me. I just speak from my experience, nothing more :)