Many people who genuinely believe that they support freedom of speech exhibit a double standard: One person’s “hate speech” is another person’s belief, opinion or even (as they see it) fact. And opinions about whether there’s a “free speech crisis” on university campuses tend to vary according to these subjective determinations. While I’m not a fan of such “crisis” language, there’s definitely a real decline in support for freedom of expression among young people. In a 2016 Knight Foundation survey, 91% of high school respondents said they supported the “freedom to express unpopular opinions.” But when pressed, only 45% said that people should have the right to publicly express ideas that others find “offensive.” The Knight Foundation’s numbers on college students’ attitudes are similar. In 2016, 78% of college respondents agreed that colleges should expose students to all types of speech and viewpoints. Yet, more than two-thirds said that colleges should be able to enact policies against language that is “intentionally offensive to certain groups,” and more than a quarter said that colleges should even …