Not American and I also agree that the current big techs should be broken up by force of the state, there is a very big difference between a company becoming monopolistic due to market forces, and a company becoming monopolistic due to state strategy, intervention, backing.

Things can be bad in a spectrum and I believe it is much easier for society/state to break up a capitalistic monopoly than a state backed monopoly. To illustrate, the state has sued some of those companies and they were seriously threatened, because of competition ills. That is not the case with a state company.