How is it not accurate, I gave you an article that showed, in period where they focus taxes mainly on the rich the standard of living dropped.
the percentage of total tax revenue from the poor may increase, but that's because the total tax revenue decreases, and the tax revenue of the rich brackets decreases at a faster rate than the tax rate of the poor. this happens because the rich either find loopholes to hide and preserve their income (e.g. putting their money into investment funds that aren't taxed like regular income, a thing the poor cannot do), or stop growing their business because their profit margins - while still positive - would either decrease or remain level instead of increasing.
the article did not show that increasing the taxes on the rich increases the taxes of the poor. it showed that when you raise the taxes on the rich, they stop paying taxes altogether to whatever degree they can manage, so the percentage - not the amount - of taxes paid by the poor increases.
The history of taxation shows that taxes which are inherently excessive are not paid. The high rates inevitably put pressure upon the taxpayer to withdraw his capital from productive business and invest it in tax-exempt securities or to find other lawful methods of avoiding the realization of taxable income. The result is that the sources of taxation are drying up; wealth is failing to carry its share of the tax burden; and capital is being diverted into channels which yield neither revenue to the Government nor profit to the people.