Recoveries come from moving some people from passive to active. In other words, some who were employees become entrepreneurs and them employers (been there and done that). Then they become new targets for the "business destroyers" in various government agencies.
Others will engage in education or retraining to adapt to the new employment market. Many old jobs never come back.
Others will engage in education or retraining to adapt to the new employment market
Entrepreneurs? Most small businesses fail - so that means that if an unemployed guy started a small business with his last dime in savings, you will have to pay entirely for his upkeep, as well as paying his income taxes that he no longer pays.
Retraining for what ? Where are there over 3 million jobs that these free trade displaced workers can go? Who will hire them and in what industries are there 3 million unfilled openings? How many companies will hire a 55 year old trainee?