Antonyms for the phrase "causes disagree" could possibly include phrases such as "united," "harmonious," or "in agreement." These phrases indicate a sense of togetherness and agreement rather than disagreement. Synonyms or related phrases could also include "aligns," "brings together," or "agrees upon," which all imply a sense of like-mindedness and cooperation. In general, antonyms for the phrase "causes disagree" will likely involve language that focuses on bringing individuals or groups together rather than creating division or disagreement.