The sound and the fury of your post does not address the relative percentages of the items in question and their change over time, which is the entire point of Free Thinker's post, which you quoted.Quote from MKTrader:
This stuff may impress the simple-minded, but there's much more to this than trying to show a trend. There are countless other variables and changes over the years. Did you take them into account?
Also, you have to look at many other angles, including this one:
http://plaza.ufl.edu/chriske2/hidden.pdf
It's like the "let's get back to the gool ol days where we taxed the rich at much higher rates." The demagogues who spew that kind of thing out forget to mention how much more the rich (and everyone else) pay now for state/city/gasoline/etc. taxes. They also don't mention how many deductions and shelters there used to be. Practically no rich person paid anywhere near those old rates. Many would be better off today with the old higher rates + all the old deductions/shelters.
But again, this complicates things and ruins the "tax the rich, it used to work" claim.