FWIW, I do see some similar criticisms of YouTube and its algorithms. I don’t read the Atlantic so I can’t compare scale, but it does happen.
Also the term Monopoly has tricky denotations and connotations; if you read Thiel's work you'll be inclined to have a strict definition of Monopoly (Ex: an online retailer isn't a monopoly because people still buy most things Elsewhere), whereas some have a looser definition (where Online Retailer is defined as likely monopoly because it is online retailer for everything that it can be, while also tracking sales data and using a white label brand to undercut other brands' SKUs)