In practice the EU's competition mechanisms aren't based on votes and the people have no influence over it. But people can choose who to do business with, as yo

In practice the EU's competition mechanisms aren't based on votes and the people have no influence over it. But people can choose who to do business with, as you observe. Apparently all those people's decisions added up led to Google being its current size. The invisible hand is really just a way of saying "people voting with their wallets". It's not perfect, but it's better than Vestager being judge, jury and executioner.