Yes. How was the monopoly obtained?
Cutthroat business practices, driving competitors out of business with arbitrarily low prices, among other things.
I do prefer that anti-trust legislation had never passed. It’s hurt America. Plus, utility regulation has just become regulatory capture. What good is that?
Honestly, I hate utility regulation precisely because it is a government-sanctioned monopoly. That's what cable companies like Comcast have in many areas, but they aren't really even regulated like a utility.
Out of curiosity, why do you think anti-trust legislation has hurt America? If it increases competition (which was the goal in breaking monopolies), that seems like a good thing.