This is a strange argument. He isn't dodging taxes - the same tax code that pays for roads and tanks also specifically encourages people to give money to charit

This is a strange argument. He isn't dodging taxes - the same tax code that pays for roads and tanks also specifically encourages people to give money to charities, by providing legal deductions. That's all he's doing. The government has a mandate, and the power, to fund itself. The same isn't true of charities.