In the 1980s there was the growing ideology that government regulation was bad, including regulation of the traditional forms of monopolies.
This ideology deliberately ignored the negative impacts on individuals and broader society.
Then we were hit by a new form of monopoly that emerged in the digital world. In this form, the cost has high product development costs, next to 0 marginal costs for new customers, and high exit costs for customers to move to a new product. Facebook, Amazon and Microsoft are all examples. These monopolies only die when a new paradigm comes along.