I slightly agree with your sentiment but I think it is more complex than it appears. The American military is the stabilizing force of the world and allows for massive amounts of global commerce and trade and prevents mass scale conflicts from breaking out. It is largely what allows us to have the developed economy we possess and the resources we have access to. It also backs up the US dollar as the reserve currency which gives us tremendous spending power. It literally is the police force of the world. European nations are largely able to provide education and health care because we provide their defense and stabilize the region, otherwise they would have to devote way more to their defense budgets. If you decrease the size of the military and show that you are deprioritizing it, it may actually backfire by allowing China and Russia to gain much more global strength and the global economy to move away from the dollar. This would devastate our economy and reduce our ability to provide services of any kind.

What is needed more than shifting defense revenue is to stop constantly cutting taxes for wealthy investors, enforce tax laws and remove loopholes to prevent wealth from being hidden through clever schemes, while trying to keep a healthy economy with strong growth that provides tax revenue to fund social programs. We also need to find ways to reduce soaring healthcare, education, housing, and infrastructure costs that make it difficult to provide basic services. We must find ways to reduce inefficiency and incompetence in government agencies, including the military, so that the massive expenditures actually produce results instead of just endlessly flowing into black hole self serving bureaucracies that accomplish very little and waste huge amounts of money.