You couldn't be more wrong. The truth is exactly the opposite.
Sales taxes & property taxes are flat, whereas income taxes are progressive. Why the confusion?
Oh? First off I never suggested that sales and property tax are not flat. Likewise, I left the word "progressive" out of my replies on this thread. Your reply is not applicable to any thing I have said.
With regard to the word "progressive" in your reply, it depends on how it is used. The current income tax can be described as progressive or regressive, depending upon which aspect or effect, is being discussed. And of course the definition used. But this has nothing to do with what has been discussed here.
With regard to which classes actually have a higher percent of their earnings (income) going toward taxes (as opposed to going for their own benefit), my answer was explained above in prior replies. That is the lower income earners pay out a greater percent of their income toward covering taxes imposed by government, than do upper income earners.
The article, manipulates the source of taxes, to claim the opposite.