Should not have been privatised to start with. Gov had no mandate to do so and no support really. Was just a money grab to fund tax cuts.
But unlike rail etc. Renationalising Royal Mail would be bloody expensive. And not raise much revenue.
Unfortunately in the areas that it can be profitable their is huge effective competition.
Of course the cost is something we need to pay. As much as the Internet etc has rep.aced much of the need. Cheap mail delivery to non profitable rural areas is still something we need as a society. And needs to be funded.
But political realities mean it will not happen soon. Likely not in this parliment.