No doubt most of the children did go to families who were well intentioned and welcoming, although the evidence of subsequent breakdowns of some of these adoptions demonstrates that good intentions are not always enough. But without the bureaucracy you choose to denigrate, the destination and fate of children who are being sold is far from certain.
Children who are being adopted will already have lost one set of parents; they have a right to expect that those responsible for their welfare do everything they can to minimise further trauma or loss. That entails checking the background of those who wish to adopt, preparing them for the far from easy task ahead and choosing a family for each child which has the best chance of making a success of caring for him or her. Yes, this is bureaucracy and it can be time consuming. It is also necessary and purposeful.
British Agencies for Adoption and Fostering