Progressive Taxation
I believe the only way a voting democracy can succeed, is when every voter contributes nearly an equal amount to government funding. Otherwise, folks will tend to vote for anything they see as a personal benefit to themselves, with little or no concern for those providing the funds.
How does progressive taxation tally with the 14th Amendment equal protection clause? “Another argument raised is that because the federal income tax is progressive, the discriminations and inequalities created by the tax should render the tax unconstitutional under the 14th Amendment, which guarantees equal protection under the law.” (Wikipedia)
But of course, government courts, in on the fix, “have ruled Such arguments have been ruled without merit under contemporary jurisprudence.” (Wikipedia) Right, right, right. Other arguably valid constitutional arguments (1st, 5th, 13th, 16th, 17th), have likewise been swatted down by the courts whose employees thrive on lordship and taxation.