I think a lot of the reason for the war on taxes is the exorbitant privilege [1] of owning the world reserve currency. It lets America print as many dollars as it wants, and borrow in a currency it controls entirely. In a normal country this would result in severe inflation, but because America borrows and prints a currency that is necessary abroad to conduct international trade, it is able to "export" a large part of its inflation.

In such a system, it is rational to cut taxes as much as possible and instead rely on borrowing and monetization of debt. It allows America to limit the load on its own citizens, who in turn enjoy "exorbitant privilege" in the colloquial rather than economic sense, and then have the costs spread amongst the billions of people who don't live here. Privatize the gains, socialize the losses.

The flip side is that if the U.S. dollar ever loses its reserve currency status, that is literally the end of the United States. It will no longer have the ability to fund the government, which is fed by debt that is largely snapped up by foreigners who need a place to park the dollars that move abroad from the persistent trade deficits needed to sustain reserve currency status. It will also no longer have a citizenry or economy capable of doing anything other than moving capital (finance) and jobs (tech) around in the global economy, since in the current reserve currency economy, those are the only sectors that are profitable to go into. If it happens, expect basically a collapse of society and multi-sided civil war.

[1] https://en.wikipedia.org/wiki/Exorbitant_privilege