***
Sounds ridiculous, put like that, doesn't it? And yet it is a useful saying: don't throw the baby out with the bathwater. It means: don't overreact, don't get rid of what is good while also addressing a problem.
In real life, however, the problem is that distinguishing what is baby, and what is bathwater, is not necessarily clear cut.
(After I wrote the above, I started watching this, and found a similar thought from around 13:52 to around 15:32. (I think the Spanish term mentioned is fracas a manía.)