I am generally not a statist. I think that change should come from the ground up, starting with radical social experiments in democracy within small communities that can then be scaled.
I don't even challenge the idea that capitalism is extremely efficient and maximizes "prosperity". My argument is that even if we take this for granted, there are still major problems with the system. Homelessness and environment are the major ones for me: what is the point of all this prosperity if in the long term it makes our world uninhabitable and it doesn't even provide a basic standard of living for the average person?
I may try out your exercise, although I haven't really felt like writing too much lately. I generally write as an act of exploring ideas; I do not feel that I have put in the work to have an entirely comprehensive view on the world. I am still figuring things out, and I am open to radically changing my views based on what I discover. I think my writing reflects that.