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I reckon it’s because the question triggers cognitive dissonance. The answer they need to give makes them realise they are incompetent, or unreasonable, or capitulating with someone else who is. They don’t want to believe that about themselves so they get angry with you to shift the focus. Now you’re the problem and they don’t have to face their own failures.

This is an insightful and hopefully helpful take. Depressing AF for its truth though.