Tax burden is tax burden.... splitting hairs on the source and use is an academic exercise irrelevant to most tax payers. The "spin" is to continue this misguided notion that somehow a large percentage of the population pay no tax. Moreover, its a "spin" you often partake in yourself as you keep relying on payroll taxes each time you try to tell us that revenues went up after tax cuts. In particular, after the so-called Bush tax cuts, tax revenue did increase, as you often point out, but ONLY because payroll tax receipt increases covered up for decreases in income tax receipts. Sorry, but your party continues to co-mingle these taxes (including using payroll taxes to cover-up/pay for income tax decreases) as it happened early last decade.
Also, has it has been pointed out to you, its nice to speak about non-taxed income, but the design of income taxation is to go after discretionary income, not total income. This is why we have personal exemptions, child credits and standardized deductions. The fact of the matter is that 50% of our population (and increasing) lives hand to mouth, without discretionary income. All in, the wealthiest in the country are not paying their fair share.... their taxes are falling and their wealth increasing.