In the wake of Brexit and the election of Donald Trump, it has become common to regard liberalism as in crisis, or even terminal decline. While critics have been warning about this crisis for over a century, the concern has intensified in recent years, not least because of the rise of social media as a vehicle for the transmission of anti-liberal ideas. Social media can be an agent of liberalism as well as an incubator of rancor, prejudice, and conspiracy theory. Overall, however, Facebook and Twitter have possibly eroded the ground that fertilizes liberal ideas by fostering a mix of rampant individualism and systematic depersonalization. From this perspective, the crisis of liberalism may have entered an alarming, new phase. Specifically, the consensus around many liberal convictions has perhaps been weakened by a cultural form that promotes an individualistic attitude often in tension with social justice, while depersonalizing users, whose identities are transformed into units of big data.