Debt spending is like that. It feels great when you get both your tax cuts and public spending, but it only goes so far before it catches up to you.
Just as it's (fiscally, if not socially) irresponsible to eat out in expensive restaurants and buy big-ticket televisions and cars while with maxed-out credit cards and going paycheque to paycheque, it's socially irresponsible to cut taxes, while maintaining military spending at whatever stratospheric number it is, and increase the debt while at it, with no plan to raise the money back.