Then I sincerely suggest you spend more time seeking disagreement. Most social and political issues are too complex for one side of the political aisle to be completely correct. and pretty much all issues are complex enough that decent people could disagree with you in good faith.

Good-faith disagreements can, of course, still be catastrophically wrong. But if you don't understand what those disagreements are, or if you get too comfortable with characterising people who disagree with you as evil or stupid, you force yourself into closed-mindedness.