"I do not dislike large companies because they are large, nor does law need to restrict size. The problem is when size translate to the power to create the rules.
"To use a metaphor: The ocean is an amazing and diverse ecosystem, supporting creatures ranging from blue whales to the plankton they feed on and everything in between. If blue whales ran the ocean, there would be blue whales and plankton. The first question for trying to introduce something like swordfish or sea horses would be 'how does that help us get more plankton?'"
(I've quoted the entire body of the entry here, but click through anyhow for the comments, which contain additional thoughts along similar lines.)