Judging by social media, most people seem to believe that it's possible to yell at people or insult and ridicule them until they change their minds. Unfortunately, as cathartic as it feels to let out your anger against awful people, this just isn't an effective strategy to reduce the amount of people who hold awful ideas.
In fact, if you do this, your opponents (and even more people who are somewhat sympathetic to their views, or just see themselves as part of the same social group) might actually walk away even more strongly committed to their bad ideas than they were before.
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