Voting with your wallet doesn't work usually, because your wallet isn't big enough.

Vote with your vote! Our system is dysfunctional in the united states, but if you look at the political unity behind something like blocking datacenter construction and how much of a headache it's causing for big tech, it's clear we still can have an effect. Most of the problem with big tech are solvable through existing anti-trust institutions IF we actually empower them. Things got bad because we stopped enforcing the rules; the rules used to work.