You can begin with a symbol -- the largest single private employer on the planet, the retailer named Walmart. A fully subsidized operation that, per its own filings, depends upon SNAP payments paid to its customers for its income. In addition to being dependent upon these payments the company depends on SNAP serving as payroll subsidy for its hundreds of thousands of workers who they choose to pay poverty wages.

Then for sectors, you may move to the depth and breadth of the energy, R&D, defense, security, health care, package freight and construction sectors, who, without their single largest governmental customers, would be a small fraction of what they are, employing a tiny fraction of historic levels.

Then there are sectors that are utterly dependent upon government subsidy, such as pharma research, agra, and transportation. Add to this the rest of the economy: sectors that would grind to a halt if not for indirect dependence upon public goods -- courts, roads and communications capacity funded by taxes.

Fact: taxpayers, uncompensated by any shares of stock, pay the bills and line the pockets of stockholders in most of really existing capitalism. Socialism exists and dominates for the rich while the market discipline that libertarians live to defend is in fact something that is reserved exclusively for the non-rich. Capitalist fables about the importance of incentives and market discipline fall on their faces the second you scrutinize flows of taxation as well as flows of appropriated value taken from workers under capitalism.