If you believe that economic growth can be accomplished by government paying one set of workers to dig holes, and another set to fill them in, YOU are a Keynesian. I believe that idea is buffoonery - the hole (once dug and filled in) leaves nothing more valuable than what is was originally (it does not appreciate, adding to wealth, nor depreciate as an asset used to create something else).
Ditto for Leader Pelosi's theory that unemployment benefits are stimulative. Government paid benefits support current expenses, but do not contribute to overall growth- they don't facilitate the creation of anything of value (wealth). Like using a credit card to pay for groceries, which are consumed before the bill arrives.