[xyzzyz]

Yes, and if you buy a can of Coke at the store with the proceeds of the sale, you're then triple taxed when you pay sales tax, and then the business owner is quadruple-taxed when he books some part of it as a profit, just like his supplier is quintuple-taxed when he is paid by store owner for the Coke supply, and so on, and so on.

Clearly, this is absurd: it is universally recognized that transactions often create tax events. There's no "double taxation" rule that doesn't allow "the same money" to be taxed twice, it's just we don't tax the same transaction twice.