Who said anything about the government stepping in to take over? I certainly didn't say that. Something like Lemmy (and the Fediverse in general) isn't government controlled, in fact it isn't controlled by any one entity, which is one of its strengths. If you're looking for a possible alternative to corporate or government control of media, you're using one right now.

The problem is that Google has become a defacto default for most people. That didn't happen just because people "decided" to start using it, the decision was made for them because Google has a great deal of money and power and can use that influence to essentially make the decision for people.