The most common opposition to replacing income tax with a sales tax is saying it is regressive because "poor" people will need to spend a larger portion of their income on taxes than a wealthy person. Ok, so don't food or primary residence. A poor person isn't buying a $300,000 car or a second home. The best part is that if somebody is having a hard time getting by, every dollar they earn can be saved instead of giving Uncle Sam a short term loan until tax day.
If you own shares of $MCD, you can get wealth taking share prices and shares owned.
But if own a McDonald's franchise, how do you measure the 'wealth' of it? Annual profit? Last x years profit, averaged?