(Apologies, long post!)
I'm glad you've decided to take this sort of tone, rather than throwing expletives around. I can see where you're coming from and I am some sympathy for what you are saying.
However, my beef is that the government has a really piss poor track record at running *anything*. We can debate all day long why this is the case, and perhaps we should as another strand, or another thread altogether. But whereas the aspirations of having our government invest in things, own them and run them to all our benefit, is a noble one - the reality is that everything they touch turns to shite. Capitalism, and in particular, proper competition, brings an imperative to do things better, cheaper, quicker, more efficiently and to offer excellent customer service. Perhaps not all of those things at once, but certainly as many of them as possible. Because if you do not, customers vote with their feet. Nationalised businesses, or indeed monopolies - which is effectively what the train companies are... for the term of their franchise at least - do not have these drivers.
Look at the situation with British Airways whilst it was nationalised. When I started flying to various European cities on business, a return from Heathrow to Charles de Gaul was about £500. In real money, I guess that's about £1,000 maybe more today. A return to Vienna cost £900. Today, you can get these sorts of flights for a fraction of that. No-one would have thought it possible back then to fly to Paris on EasyJet for £20. But with ever increased competition and the pure ingenuity of businesses to find ways to do things cheaper more effectively, this is the end result.
This would NEVER have happened if the airlines remained state-owned. They'd continue to charge £500 or more, AND, staggeringly, continue to make a loss every year. So no benefit to the taxpayer and certainly no benefit to the public. Just a bunch of fat bureaucrats sitting fat dumb and happy, drawing their inflated wages for doing fuck all and not giving a shit about the customer.
Incidentally, did you know that until the 90's, in Russian there was no such term as "customer service"? They had no concept of it. People who bought goods and services were "purchasers", and the idea that you actually needed to give them some quality of service, was completely alien. Why should you bother - they have to buy off you anyway.
I digress. The rail privatisations have been a complete balls up, because they did it wrong. Instead of making businesses bid for individual routes and times (like airport time slots) they thought it a good idea to award 10 year contracts for whole lines, effectively giving the company a monopoly and allowing them to do what on earth they liked. So +2%, 3%, 4% per annum increases might seem very reasonable to a naive regulator, but the fact is the businesses have been ripping us off, because they can. 1st class fare are not even regulated at all, FFS.
Imagine the alternative scenario where you'd be thinking of a trip to London and you'd think, hmmmm, should i get the 07:40 Virgin train, because that's only £20 return or I could get the EasyJet 07:55, and that's £55 but got the flat bed seats and table-side service. How marvellous would that be. This would NEVER be realised if the government runs it. NEVER.
Privatisation isn't the be all and end all. Private businesses seek to rip people off wherever and however possible, so long as it doesn't lose them customers and damage their revenues. John Lewis's Never Knowingly Undersold, means "Charging as much as possible, but no more than our competitors". You don't need an army of people to check competitors prices if you want to set your lowest price: you just do it. The army of checkers is to make sure your prices are not lower than they need be!
So if you have privatisation, you need to do it right. Either (ideally) with proper competition and service level agreements. Or with a regulator with actual teeth. "No mr GWR, you are reducing your prices by 8% this year. None of this +3% increase bullshit again.)
Some of the privatizations have been a shambles. When the government runs it, it's ALWAYS a shambles.