不分皂白

bùfēnzàobái
not distinguishing black or white (idiom); not to distinguish between right and wrong

CEDICT

不分青红皂白／不分青红皂白(bùfēnqīnghóngzàobái)之同义词

維基詞典

Entry Composition

1 不分 bùfēn
  1. not to distinguish; to make no distinction
  2. (LGBT slang) versatile (open to either penetrative or receptive role)
2 皂白 zàobái black and white; right and wrong