I don't think that's a good analogy; there are significant differences between a local supermarket (local, items must fit in the store) and Amazon's marketplace (global, items can be located anywhere globally within reason).

The justice department(?) demanded that Microsoft stop bundling (or forcing, can't remember the specifics) IE on Windows.

Laissez faire capitalism has both benefits and risks, casual/militant dismissal of concerns can sometimes have negative consequences, sometimes very severe.