Is pervasive social media the same as broadcasting? And if it is, can it not be regulated in ways similar to the manner in which broadcasting was regulated back in its infancy?
This is a very complex issue, and one whose nuances cannot be fully illuminated here in the space …
Newspapers, powerful in the 19th and 20th Centuries, didn't have the requirements broadcasters have. Regulations were based on use of the spectrum: a scarce public resource. Limiting what companies do online won't be able to use the same justification.
Having taught both media law and media history for more than 20 years, I would say that sociologist Carr has no idea what he's talking about. No surprise that his rubbish was published in The Wall Street Journal.