The signs of American collapse are everywhere. The Russians are out-producing not just the US, but the West in missiles, tanks and drones. The Chinese have a larger navy than the US and can build three ships in the time it takes the US to build one, and yes, their domestic arms industry is larger and more productive than America’s. They and the Russians are also ahead technologically in missiles, and arguably drones. (America has more expensive larger ones, but Ukraine shows what works is swarms of smaller ones.)
What’s really damning is the Western inability to ramp up production for the Ukrainian war. The Russians vastly increased production, the West hasn’t and can’t. De-industrialization is real.