DU-grade Progs want to deal with a static world where: people and businesses don't alter what they do and where they live/operate in response to high taxes; businesses don't reduce employee hours or automate when the minimum wage is arbitrarily raised >50% in a few months or years; business models don't change, causing businesses that can't or won't change to go out of business.
One of my former employers, a computer company, was a high flyer in the 1980s. They failed to listen to their customers' demand for Unix instead of the company's proprietary operating system. By the year 2000, it had bee acquired and it's new owner also acquired. Its once industry-creating products were dead end legacy systems.
Another former employer, a Unix-based computer company failed to foresee that Intel-based Windows desktop systems would overtake their proprietary processor desktop workstations and tried to enter the server market too late. A database SW company acquired them for their SW products, and let their server products wither away.
Business model failure isn't all that unusual ... in the real world.