You can go further back to the founding of the nation for why this is. It didn't start with the GOP. Things that would be nationalized in other countries like the railroads have always been private in america. Even when Alexander Hamilton and George Washington had taxpayers of New Jersey pay for the country's first manufactories in Paterson, they were all private industries. Abraham Lincoln privatized all the railroads and telegraph lines after the civil war. (We had nationalized them for the war effort, so taxpayers paid for thousands of miles of railroad that was handed off to railroad companies.) You can even go further back, before the united states was even a thing and look at mercantilism, where merchants/private industry ran the country, but it was understood that they were subservient to the nation, economic growth's sole purpose was for national defense, and you took care of your citizenry because they were your troops. Thanks to the civil war, the 2nd industrial revolution, the gilded age, globalism, america has taken more and more turns towards 'every man for themself' and not giving a shit about the country, so obviously well-intentioned privatization of public utilities makes less and less sense.