Keynes is inappropriate for this economy. There is no need for either tax cuts for the wealthy nor for increased government spending because there is already so much money at the top that the wealthy have more than enough money to create jobs for the entire world, and most governments are already near bankruptcy from overspending.
It is time for the wealthy to step up to the plate and create jobs, that's what the 1980s trickle-down tax cuts of 20% or more per year for the past 30 years were supposed to do. Did the wealthy lie to us when they said they would create more jobs if they got those huge tax cuts in the 1980s?
"Keynes said that when companies don’t want to invest and consumers don’t want to spend, government must break the dangerous cycle by stepping up its own spending or cutting taxes, either of which will put more money in people’s pockets."