Equal Taxes

 Just a question.  Why are taxes based on a percentage of your earnings?  Since we all receive the same police protection, fire protection, road repair and other things it would be fair to just have a flat tax that is paid no matter what you earn.  I mean if you go to a store, or anywhere you pay the same price no matter your income shouldn't that be the same for taxes?  This would definitely force our elected public SERVANTS and civil servants to get the budget under control and stop with all these pensions, grants, welfare foreign aid and more.  We need to take back America they are not our rulers they are our servants time they are treated that way and reminded or removed.