Actually, Marianne you are wrong.
In fact, the general feeling of society that an amicable divorce is a good way forward for children is entirely wrong.
The only circumstance in which a parental split is better for children than the parents staying together is when the split is down to abuse. It is better to take children out of an environment in which they are being abused or in which they are witnessing abuse (as it will make them likely to accept it in their own relationships later).
Then, the circumstances that should be arrived at after the divorce is that the children should not be exposed to abusive behaviour. Which may rule out amicability/further changes in circumstances.
Yes, acrimony does cause additional damage. But no acrimony does not mean no damage. Yes, when parents over share emotions it does cause additional damage. But no emotional over sharing does not equal no damage.
In short, unless there is abuse, it is better for children for their parents to stay together. It is a myth that if parents are in an unhappy marriage, the children will be unhappy. It might be better for one or both of the parents for their to be a split (although often it isn't), but, unless there is abuse, it is not better for the children. It's an uncomfortable truth for a society with such a high divorce rate, but it is the truth.
The best outcomes for children in terms of health (including mental health), happiness, educational attainment, success in their own relationships both friendship and romantic, work achievement come when parents stay together. Splitting up with an abusive partner is better than staying with an abusive partner simply because it shows the child that they do not accept abuse (and, obviously because it takes them out of an environment where they be abused themselves).
If you want to look into the research on this "The Unexpected Legacy of Divorce: a 25 year landmark study" is a good starting point. If you don;t want to face it, down to some of the decisions you or important people in your life have made, then that's your choice, but it doesn;t magically make divorce/parental splits ok for children.