You're already living in a world that's run by the top 10 companies/websites you visit. There's nothing inherently different between the downsides of monopolie

You're already living in a world that's run by the top 10 companies/websites you visit. There's nothing inherently different between the downsides of monopolies or oligopolistic cartels as far as the consumer is concerned. In other words, what's the real difference if it's Google + Facebook or Google + Amazon or Facebook + Amazon?