You're partially right, but that is because many governments are engaging in Austerity instead (which is worse, quite frankly).
The only things that kept the $850 billion dollar stimulus from working better than it did are 1) half of it was tax cuts, as opposed to infrastructure and 2)$850 billion wouldn't have been enough in the first place (estimates have shown that 1.2-1.4 trillion would have likely been sufficient).
Keynesian economics are responsible for the fastest economic recovery in the history of the world (New Deal, the Great Depression), Monetarist economic principles ended inflation by inducing both the depression and recovery in the early 1980's, Keynesian and monetarist principles were used in Japan's "Lost Decade" (although it took them quite a while to actually spend enough to get out of their recession, after the first round of legislative acts it took them until 1998 to spend more... a couple of years later they recovered and have been considered one of the best economies in the world.. until massive waves ofc).
Where has classical economics taken us?
It just seems everywhere I look, the evidence is there for Keynes - but there is nothing supporting neo-classical policies as a way out of recession(many key principles are essentially frauds... Trickle down theory? debunked.. cutting taxes increases revenue? debunked...).
This time around ya'll can drop the community organizer tag and refer to his 4 years as a President 
