@georgeob1,
The reasons the recovery is taking much longer are many. Some of them are the cause of the real estate implosion. Consumers can no longer use their homes as a piggy bank. Middle class wages have been stagnant since 2008, and many lost their jobs. When wages and benefits are reduced for the middle class, that's going to hurt consumer spending.
There's a world recession going on with the Euro countries trying to save their currency. Their unemployment is higher than ours which results in less imports from the US. When world demand drops for goods and services, all economies are impacted. Jobs in the US also depend on world demand; it's now a world economy, and thinking in terms of isolation is unrealistic.
Not many may agree with Krugman, but if they don't agree with him, they need to spell out what their disagreements are. Ad hominems are useless tools of debate.