Keynesian economy never worked. Redistributing money will just make it worthless.
Supporting consumers obviously worked this year, the fact that a 30% drop in economic activity has been as mild systematically as it has is direct counter evidence to your statement.
If we do no redistribution and simply allow people to starve in the streets then revolution is coming.
On the other hand, if we prioritize helping people, and stop propping up failing businesses then we can maintain social stability long enough for the economy to restructure according to natural economic forces.
I agree that there was a massive mal-investment in much of the Eurozone post 2002 (I'm irish and remember this well), but I don't really see how this maps to socialism/socialists. Can you clarify?