Where are they now, these people who once built this nation? They are Whites Going Their Own Way (WGTOW) who have dropped out, moved away from the big cities, set themselves up with rougher surroundings, and done their best to secede from political and economic life. They are earning less to avoid paying taxes, and doing more through barter and producing their own food, supplies and tools.
If you go to the outer suburbs here, every other house seems to be subsidized to some degree by reselling products on eBay or other internet work. The kids who mow the lawn are paid in canned food. A guy down the street swaps homebrew beer and tobacco for raw materials to make more. The carpenter takes labor in kind in trade, or goods, and just acquired a used car cheap this way.
Look at their 1040s. Every single one includes a home-based business that generates massive deductions, if they even bother to file one. The end result is that these people have converted themselves from tax cash cows into tax-eaters. They buy almost nothing new, and are fixing those old gadgets, cars, heaters, air conditioners and water heaters, especially since the old ones work better anyway.
When you need someone to help out, you go hang out at the local watering hole that now serves homebrew beer and allows people to smoke again. The band tonight takes payment in home-grown vegetables and homemade beef jerky. People are buying what they need online with BitCoin or through swaps via Craigslist. There is a neighborhood website where further transactions take place.