a value judgement
A judgment about someone or something based upon one's own personal beliefs, opinions, ideologies, etc., rather than objective facts or criteria. Their decision to fire him seems like a value judgment, as the manager has expressed in the past how he disliked Mike on a personal level. I implore you, ladies and gentlemen of the jury, not to make a value judgment when deciding my defendant's fate. You can't convict just because she disgusts you at a personal level—you have to decide whether she broke the law or not.
Farlex Dictionary of Idioms. © 2015 Farlex, Inc, all rights reserved.
a ˈvalue judgement(especially British English) (American English usually a ˈvalue judgment) (disapproving) a judgement about something that is based on somebody’s personal opinion and not on facts: ‘She’s quite a good driver for a woman.’ ‘That’s a real value judgement. Women drive just as well as men.’ ♢ He’s always making value judgements.
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