When a non-state actor hires mercenaries to terrorize and pillage a settlement, the resultant deaths can be attributed to capitalism.
When a private pharmaceutical company releases an untested drug and deceives people as to any potential side effects, that is a death attributable to capitalism.
When a meat packing plant poisons its own product, or their competitor’s product, and the FDA does not come into contact with the food at any later stage, that is a death attributable to capitalism.
If you are working in a building and your employers lock the door behind you, and your building catches fire, your death is attributable to capitalism.
When a privately owned oil rig explodes and poisons your ecosystem and you drink the water and die, your death is attributable to capitalism.
Dying of starvation is not attributable to capitalism. You are not entitled to food. Farmers work hard to produce it, and sell it at prices determined by market forces.
Poisoned public water is not a death attributable to capitalism. You know this because you point to public water as an example of how socialism isn’t so bad.
Airstrikes by a first world nation are not attributable to capitalism. A fruit company asking the CIA to overthrow the government of your home country is not attributable to capitalism. State violence is anticapitalist by nature. This is why those evil greedy Koch Brothers are trying to eliminate it.
Dying because you have nothing to give a doctor in exchange for a necessary service is not a death attributable to capitalism. His service is offered on a voluntary basis, and his time was evidently put to better use elsewhere.
Dying because you have nothing to offer somebody in exchange for a thing you need is not a death attributable to capitalism. Dying because people would rather expend their resources on things they need than things you claim you need is not a death attributable to capitalism. People are not your slaves.
Capitalism does not kill thousands of people daily. If capitalism killed a thousand people in a single month I’d be surprised.