Re: Publicly owned business
As a counter to that suggestion, let me point you to the success story that is the railways under national ownership.
The railways were actually nationalised three times. During WW1, the government took over all the railways and worked them in to the ground and failed to maintain them. Then at the end of WW1, when they were knackered, the government handed them back to the rail companies. Then it hiked wages for workers. Then it fixed ticket prices.
As a result of that section of brilliant actions lines closed and the companies were merged in to the 'Big Four' rail companies. They pretty much got back on their feet and started doing well again by the time WW2 came around, when the government did exactly the same thing - taking them over, running them in to the ground and failing to maintain them properly.
Finally, of course, it nationalised them after the war. It then chose to keep operating steam services when diesel was the way forward. Then it closed down two thirds of the rail network, stripping out the inter-city lines and designing a train network focused entirely on the needs of the capital. British Rail was a byword for incompetence and poor quality. They were still closing down rail lines right up to privatisation. Near where I lived they closed down a line and a set of stations by altering the timetable to ensure there weren't any connecting services, and then saying there 'wasn't any demand'.
This is the nature of nationalised public services. They are uniformly awful. The socialist ideal is fine but when it hits the buffers of reality it all falls apart. Like every socialist ideal.