it's a distraction by statistic
Nonsense. It's not a distraction, it's different topic than the ebb and flow of entitlement programs like Social Security and Medicare (which are transfer welfare taxes). Income taxes are what pay for all discretionary spending (the military, federal agencies like the EPA, the FAA, the FCC and a jillion other activities). There's a good reason we look at all of those differently than we do the entitlement programs.
If Warren Buffet loses money in an investment? He doesn't get to write that off against his income taxes - he just loses it, plain and simple. But he's smart, and usually makes good investments. If he's making money, the money he risked is being put to very good use in an active economy. That's the entire reason why we reward that risk taking with a lower tax rate - because we want more of that risk taking to happen.
All of which has nothing to do with transfer entitlement taxes.