These kind of parents don't want to believe their child has any autonomy or agency at all. The child is simply an extension of the parent and is to do what the parents say and believe what the parents say. That's how good kids behave. And their kid is good!

So as soon as the kid is old enough and has had enough social and media exposure to have formed their own opinions, feelings, personality, goals, and beliefs, then the cracks start forming in the perfect Mini-Me facade that the parents were clinging to for so long.

And they don't like that. "That's not right! It must be someone's fault that my kid turned out to be a different person than who I wanted them to be! Someone has brainwashed them! Someone has controlled them! Make my baby be normal again!"