Out of curiosity, I bit and looked up the "sources." I regret my decision.
Only a portion of that imaginary $4,000 is direct corporate subsidies, and another portion is their valuation of amount of overpricing and tax avoidance committed by corporations.
If you look at the link, they divide the direct corporate subsidies by the number of American families to get the supposed dollar value. They don't realize that corporations themselves pay income taxes, and corporations collectively pay more than triple the aggregate amount of federal direct subsidies given to them.
The major reason for both corporate subsidies and tax avoidance is because the American corporate income tax rate is among the highest in the world. If the government decreased it (something that Obama, Trump, and Romney have all supported), there would be a net increase of corporate/investor spending within the US.
The numbers of the stupid chart don't even make sense, though. I'll give one example. The minimum amount that an individual would pay for Medicare is easily calculated, as part of the payroll tax is set aside for it. An individual making $50,000 annually would pay at least 1.45% of their income into Medicare. That would be $725 minimum going into Medicare, which nowhere near $235.81.
These numbers are completely off. Anyone peddling this is the liberal equivalent of Rush-listening NGFM.