Let me explain what this is, as I see it. There is something that happens sometimes, in breast-feeding, where - for the mother - it becomes more than just a natural feeding/nurturing of an infant/toddler. The natural thing is for the mother, at a certain age of her child's walking/talking, begins to discourage it, gently, with remarks like 'aren't you getting too big for that?' or 'big boys don't want to do
that'. Or usually an older sibling or two will help provoke this step of maturation.
But, something else happens, sometimes. The mother holds too long to the suckling child. It is a mental illness of the mother, not the child. But, he very likely is feeling like there is something wrong with him, that he is not like other children. And removing him from the household re-affirms that. He was incarcerated away from his mother. He has done something bad, and he is bad. They both need psychological help at this stage, not government agencies removing him.
You have a good point.