The underlying flaw in the negativity that the people who are really concerning for social workers are the ones who don't agre theres a problem so are the ones more likely to have kids removed but also more likely to be the ones shouting about how bad it is.
My female relative for example thought social work were mad, never engaged properly, never showed any form of insight or reassurance it wouldn't happen again thus lost her kids
Say the concern is a dirty house.
Person 1 says "oh shit it is dirty', cleans it, looks contrite and social work goes away. Even if person 1 doesn't actually agree that things were that bad
Person 2 spends time arguing about how its completely fine environment for kids to live in, social workers are corrupt/evil. social work know the second they leave the house will be in the same state and even worse the person thinks it's ok and is completely unable to recognise what kids need, the importance of keeping it up, or try to stop it happen again. They get their kids removed and usually have zero insight into why so publicly go on a rampage
Change dirty house, for emotional neglect, abuse or whatever
My relatives was a dodgy partner. Her ardent arguing that social workers were unfair, completely confirmed the idea that she had no idea of how to recognise concerns and would put no effort into making sure that it wouldn't happen again and would clearly let him back in the second social workers left.
If she'd have understood and seen the risk, they would have trusted her more. It also doesn't help she assaulted the kids social worker (again she denies it was "that bad" to class as an assualt, was definitely provoked into it etc so no remorse). If her family hadn't prioritised trying to show up social workers, support her on her Internet raging etc, then he'd probably have been kept in the family too but again they gave everg reason to think they would completely disregard everything put in place to protect the child
However she's all over the Internet about how unfair, random and unfounded it all was
I absolutely don't think they get it right all the time, but half the time people completely self sabotage by deciding proving ss wrong is more important