Henryk. This is a great article. While I do not agree fully with your points, you have laid them out very well. A discerning reader of any political persuasion can understand your logic and rational. With positional points so well made, that is the first step in finding a good solution. The next step is to listen to the other side.
Some years back, I did a little analysis on my Canada Pension Account. If I take all my contributions and compare them to my pension earnings and live until an average old age , I will get a lot more money than I put. Yes, the government could have invested my contributions to earn some compounding interest, but even that does not explain the discrepancy.
I need to do some research on this matter, but I think most pension plans have a provision to GUARANTEE a certain rate of return on contributions. When the rate of return does not reach that guarantee, the plan becomes underfunded. We need to write out those guarantees.
As for the value of public sector employees, I have this solution: