- Marxism and the managed economy have been discredited.
- In no small part, Labor is no longer a significant force in society, they are less profitable to run, and Labor Unions have been successfully discredited due to their abuses.
- Public works projects other than infastructural necessity do not produce the returns anticipated.
- Much of the Great Society (housing) turns out to be a recipe for poverty and crime. Large central projects turn out to be ineffective (see Detroit, MI.)
So the movement has focused on direct redistribution. There are many reasons for this change but I would need a more specific question in order to avoid writing a ten thousand words to cover the entire suite of reasons. The left leaning economists desperately want to change this, but the public won’t have it. They are done with additional taxes.