The thing about the retirement crisis is that it's, you know, here. People don't have enough money to retire and maintain anything close to their existing standard of living. The 401(k) experiment failed, and even if 401(k) II Electric Boogaloo comes along and is totally awesome, that doesn't do anything for current and near retirees.
We want to structure our economy so that people who are beyond the age when they are able to work/able to find work will be able to have a dignified existence. We're currently failing at that.