throw the baby out with the bathwater
UK /θɹəʊ ðə ˈbeɪbi aʊt wɪð ðə ˈbɑːθwɔːtə(ɹ)/US /θɹoʊ ðə ˈbeɪbi aʊt wɪθ ðə ˈbæθwɔtɚ/
verb1
forms
threw the baby out with the bathwater · thrown the baby out with the bathwater · throwing the baby out with the bathwater · throws the baby out with the bathwater