I fail to see the problem. Lower population means an age of abundance: high supply, low demand, safe environment, automation, freedom, leisure, invention. Think dark ages, plague, Renaissance. Pensions can either deflate with price level, or governments can inflate with basic income. It’s only bad for an elite class of people that benefits from increasing consumption, but doesn’t pay the social cost of it. And if you pay more than 0.1% of your net worth in taxes, that’s not you. The elites have become brazen in their assumption of our stupidity.