All economic systems involve capital and pabor, with the differences being in who gets to decide how it is employed. "Capitalism" is used to describe everything from laissez-faire to fascism, while "socialism" is used for everything from welfare states to totalitarian communism. Without defining terms in relation to consent and coercion, it's a meaningless argument with people shouting past one another.
Fiat money is the driving force behind inflation, systematic wealth transfers to the politically-connected, and the warfare state, but because our modern systems are described as "capitalist," this is used to condemn commodity money, property rights, and market exchange.
Corporate collusion with government is clearly in the sphere of coercion, not free trade. The military-industrial complex replies on government funding via tax revenue. People who voted for Trump hoping for a peace president got screwed, and now must fund what they opposed. Democracy is a counterfeit of real choice.
People condemn profits as inherently exploitative, but real free trade is mutually-beneficial. Voluntary exchange requires both parties to consent, and it is not a zero-sum game. If we had a commodity money again, ideally silver for practical day-to-day uses and no fixed bimetallism exchange to gold, it would transform many of the abuses in our financial system and cut off the inflationary process used to covertly fund things the people oppose.
RE: Capital Punishment