Right, so we need both. Defund the military, make sure rich people still pay their fair amount of taxes, and use that money to invest in science, education, healthcare, education etc.
Defunding the military has real impacts. Those free trade deals that lower the cost of goods for average people don't just magically get signed, generally U.S. military presence is also a part of the deal.
More generally if the U.S. loses global hegemony then so does the dollar, and a mass exodus from the dollar as foreign reserve would cause rampant inflation as demand for dollars crashes.
The geopolitical situation is more complicated than just "defund the military". You can see both the current and past administration are trying to get other countries to pay more for the U.S. presence, which is a form of slow withdrawal of U.S. power, so I think they recognize that there is a need to redirect funds, but I don't think you can just outright leave in a year.
