The premise of the discussion here is wrong, which is, after all, a common problem with discussions of public policy.  “Trade is zero sum.”  Wrong.  “People do not respond to incentives.”  Wrong.  “Socialism had nothing to do with the collapse of the Venezuelan economy.”  Wrong.  Or in the present case, “When a company such as Facebook or Google has suddenly grown, it must be a dangerous monopoly and needs to be regulated by wise heads in Whitehall.”  Wrong.

Sure, in the short run we are all terrified that the big shoe company will sell us only its own shoes, or that Cadbury under Kraft will change the formula for Whole Nut, or that in other ways “the corporations” such as Google will upset our lives.