Very much this. The enormous arbitrary power that employers wield and have always wielded, is one of the sacred cows of capitalism. Underprivileged people have

Very much this. The enormous arbitrary power that employers wield and have always wielded, is one of the sacred cows of capitalism. Underprivileged people have had to deal with being fired (or never even being hired) for irrelevant reasons or in fact without any reason being given at all. But now that this same hammer is coming down on white people's offensive tweets, suddenly it's a "free speech" issue.