[linkregister]

This is somewhat incorrect. There are finite resources in the US justice system. Investigating Google now does hinder investigation of Equifax. Furthermore, momentum for prosecution in a class of business begets greater public support for prosecution of other businesses in that class. Despite overwhelming evidence to the contrary, there is a substantial belief that tech companies deprioritize Conservative opinions and content. We should not ignore the political component to these prosecutions.

Your first point is correct, however. Competition in some fields is declining; Amazon is the dominant internet retailer by a large margin. Google has even larger dominion over the online ad space, save for walled gardens. Investigation of large tech companies is justified on its merits. It is likely that some companies have not broken any laws, but there is value to investigation.