*Economist steps in*
Keynesian economics has never been proved to have lessened the impacts of recessions, it didn’t cause the Great Depression (but it didn’t help the world get out of it), and it caused just about every depression before it fell out of favour because of its nasty habit of causing stagflation and recessions. Keynes had some extreme reservations about his work, and made it abundantly clear that what he proposed had limited scope for use; he never intended it to become the orthodox school of economic thought.
The Laffer Curve has just been shown to be less elastic than first thought, at a 100% taxation people will dodge, duck, dip, dive and dodge, at 0% nobody pays tax, the key is that it’s a great deal more flat than originally thought. So its probably not the best thing to base your whole ideology on.
As to trickle down, I can note that growing inequality in America is happening by the traditional measures, gini coefficients etc, but cheaper goods from China are largely mitigating that growth, in effect it has increased but the purchasing power of the bottom rung has increased significantly.
I can provide proofs for all of these.
As to fox, it’s painful, but no less painful that watching the BBC, reading the Guardian, the NYT, or just about all media outlets. Honestly I read the Economist and ignore the pro-democracy, pro-free trade and pro individual rights (not because it’s a bad thing) but because I read the economist for news not propaganda (however pleasant it is).