Perhaps you'd prefer the chaos of them going bankrupt?
If postal deliveries and etc can be run with 50,000 less jobs - I would think that was a good think. It could mean cheaper postal charges, more profits for the company (which means more tax paid, more money for investments, more money to support their pension funds etc.), and a more stable, reliable organisaton to run it all.
Pluys more workers who could be better employed in other companies, thus lowering the need for immigrant labour.
In short - a win, win, win situation.
As for the trains - there are big, ongoing increases in passengers carried, faster journey times, more comfortable rolling stock and so on - what's wrong with that - compared to the run down nationalised organisation there used to be?