There’s no clear answer to those questions, or to what the right response should be. Blanket moral outrage and exposure campaigns don’t work — and probably don’t help create the kind of world we’d actually want to live in, with further encroachment on free speech. But this behavior shouldn’t be ignored and it certainly isn’t disappearing, either. In fact, it’s likely to intensify as the internet keeps eroding the norms that once held such extremes at bay. This week, POLITICO reported the existence of more than 28,000 Telegram messages from a group chat of Young Republicans. Bobby Walker, then vice...