The job turnover rate is not always about getting better jobs or attaining higher productivity.
I think most of the people I know actual live assuming they'll be laid off or unfairly axed at some point.  Except me.  I am in a union.  Actually, I worry too.

It's not entirely out of the realm of possibility to think that there are more jobs because we have to work more of them to make ends meet.  It is also not out of the realm of possibility that this who job creation thing is a big MYTH.

And what, what are these beloved "productive" jobs they think we all have?  There are millions of burger flippers, hoardes of retail slaves, droves of office assistants who move paper from one pile to another, the population of which would dwarf some European countries.  Sure we are productive, but what exactly are we producing?

Oh, yeah.  We in America also need full time work for healthcare here.  So losing a job also means we better not get sick or hit by a car.  So being in between jobs could kill ya.  More jobs for the gravediggers, I guess...

People also don't take vacations here for fear of losing their jobs.  Oh, they are offered, but many times the company says, "Here's your vacation.  I dare you to take it.  Feelin' lucky, are ya punk?" ... That's how American companies interpret
"flexibility".  I get 3 weeks off.  Union.  

So on the one hand "job turnover" and "flexibility" might be a sign of sheer utopia.  But it might also be illustrative of a big social problem which is that companies are not investing AT ALL in the security or futures of their employees, the American people.  How that's good for the nation's economy is beyond me.  I guess as long as we keep buying disposable crap with our credit cards it doesn't matter if we can't afford college or health insurance or a small peace of mind.  

Anyway...  

Note to Europe: Please don't follow our example!  

Those who can make you believe absurdities can make you commit atrocities. -Voltaire