Bullets, canned goods and candles. Seriously, modern American life requires millions of normie men who keep the lights on, the water flowing, the sewage draining, and the trash hauled away every day. When the population starts dropping, those men will be among the first (fit young to middle aged men are most susceptible to the heart damage), and those services will start breaking down. That break down will NOT be linear. It's not, 50% of the workers gone, 50% of the service level. It's more like, 10% of them gone, 50% of the service level. 15% gone, 25% of the service level. Just losing a few will cause serious degregations, and those will cascade into other places. If the power goes out, the clock is ticking on the water and sewage (which require electrically driven pumps to operate.) If the water goes out, the clock is ticking on the electricity (which requires water cooling.) Anything goes out and absenteeism goes up everywhere. Society is a finely balanced machine, and these assholes are throwing sand into every opening in that machine.