This is along the lines of what I learnt about (starting a masters in autism - was several years ago now and my memory is flawed!).
There are many adult autistics who are able to speak very eloquently about their abuse via ABA, and understandably they will never accept it as anything but abusive, and many have ptsd from it.
Elements of ABA are commonly used in useful ways though, which don’t force a child to act NT, but rather work effectively to help reduce self harming behaviour, inappropriate behaviour (like stripping off in public or masturbating in public), which are usually positive for a child/teen to learn. Iirc it’s used in many special schools, but tends to not be called ABA any more (again, it’s been years and I can’t remember the specifics).
Like many other topics, this is an emotive one, people will tend to be polarised about it. It has been used in truly abusive ways, but like most things there’s a balance to be had, and it does have its uses.