The bottom line is that we need some fair way to enable recovery from the trillions of pounds of debt incurred during the pandemic and from the costs incurred by dealing with the war in Ukraine.
You missed out the self-inflicted idiocies that were Brexit and the Liz Truss / Kwasi Kwarteng disaster. And, of course, many of the costs of the pandemic were due to government incompetence (e.g. all that useless PPE ordered from cronies).
Those who maintain their previous real income will do so at the expense of others.
Yes. The current government seems intent on making sure that the already very rich maintain their income at the expense of everybody else.
If we give in to the demands of powerful trade unions, the resulting inflation will be unfair to those who have no means keep up with such inflation.
The problem is not "powerful trade unions". We simply can't maintain public services if you don't pay people enough to recruit and retain the staff required, and you can't do that if you're protecting the income of the very rich and the huge profits big businesses.