You mean like when the government did something about Standard Oil or Ma Bell?

We need policies that are good for America.  That is generally laissez faire capitalism, which mean the .gov generally lets the economy do its thing.  It doesn't mean totally free and untrammeled capitalism.  We can get rid of a bunch of regulations and rules that create barriers to entry while also taking some general policy stances on things that are overall bad for America as a whole.