Since the founding of our nation we have seen an ever increasing enfranchisement of voters. With this rise we have seen an ever declining "standard of buy in" for those voters.
I work in a field where Democratic ideals don't exist. If you want to protest this (or the next) war, do it as a civilian. We in the military volunteered to shut up and Soldier (SUAS) in order to GET THINGS DONE.
We have "bought in" to the system. But we don't get much of a say in our orders, but because we've all pledged our lives to the service we are effective as an organization.
Right now our voters haven't "bought in" to the system. 47% of them don't even pay income tax.
Let us explain this in terms of "Shepherd's Stew". Where everybody puts in a little something to the common pot, and everybody who puts in gets to take out. Right now half the people around the campfire haven't put into the pot but are fully expecting to take out of it. And they will, because they have been enfranchised with their vote, and the politicians who need their vote are more than happy to take your money and give it away to ensure that they stay in office.
This is why a flat rate tax is the only moral solution to enfranchisement. A 10% tax taken out by your employer (or quarterly tax payments if you are self employed) means that no one gets a tax return, but it also means that EVERYBODY is bought in to the system.
Teddy Roosevelt was a champion of the graduated tax because of his personal belief that those who earned more money from the market earned less from their personal labor and more from the labor of others. If you asked Teddy if someone should pay NO tax I think you would get a resounding "NO". The graduated tax scheme has come to the point where half our voting population doesn't even pay into the system. Teddy would not like that at all.
More and more countries are adopting a flat tax because it is fair, just, and simple. Currently our tax code is twenty six volumes of gobbledygook desperately needing to be simplified.