Outsource the military to the US in an alliance you mean.

that is exactly the point. you don't need more taxes, you need better resource allocation. most citizens would allocate public funds differently than their govt would. the reason the US is so defense heavy is that it feeds into their fiat military industrial flywheel. ...print money, give it to a foreign govt, they buy your US weapons, rinse and repeat.. Health and Education don't work the same way.