Over the past decade, American moral culture has changed. The evidence of those changes has been especially apparent on college campuses, where new concepts such as microaggressions, safe spaces, trigger warnings, and bias response teams were first tested. But this new “victimhood culture” is devastating to its adherents, disempowering them and dooming them to disappointment. In The Coddling of the American Mind: How Good Intentions and Bad Ideas are Setting Up a Generation for Failure, Greg Lukianoff and Jonathan Haidt explain this mindset: What is new today is the premise that students are fragile. Even those who are not fragile...