I think the problem is that most normal parents understandably put themselves in the situation of having a child removed and feel how appalling that would be. But they are not anything like the vast, vast majority of birth families whose children are adopted.
Most are totally incapable of caring for themselves, let alone children. Almost all very young babies/toddlers will be ‘fortunate’ that a poor older sibling will have been abused for years before there is enough evidence to show that this parent (and any other family) simply cannot or will not do the absolute basics.
I’ve known children remain with parents despite failing to feed them at all for several days whilst they have been physically or practically absent. Women who have allowed men to do the most unspeakable harm to children, but keep returning despite all the help to leave, and dragging their children back to hell.
Imagine then, not your family, not your child but:
Children who have been offered up to paedophile rings.
Children who have watch their mother prostitute herself for drugs in front of them.
Children who have been told they are “a piece of shit”, “should go kill themselves” and worse
Children who endure some of the above whilst caring/being cared for by siblings barely older than themselves.
Children who endure the above without a bed or clean clothes or lunch.
These aren’t your children. You aren’t under threat from this. These children need our protection, and dammit after all they have been through they absolutely should not be left without utterly committed parents who can advocate, seek out and surround them in as much help as possible to recover from the harm they have suffered and sadly will probably carry with them.