Keynesianism adds a bit of spending power to the consumer and incentivises spending on their part even if they're just using welfare bucks.

Biden: bombs go brrrr

Pick the side that benefits you the most

They dont & ironically the fact they use them proves they're motivated by a profit motive.

Keynesianism?

state debt & spending is

high in places like puerto rico.

The main thing is that the country had no currency of its own "they used dollars" & had a large external debt.