George W Bush recklessly spent eight years enacting some of the most irresponsible and cruel policies in decades, and as a result, in combination with a general trend of banking deregulation over the past thirty years, more than tipped the scales to cause the second worst economic disaster in US history.
Obama takes office and within weeks manages to take enough steps to stem the brunt of this disaster, restoring the banking industry and the general health of the economy, pushing back at the damage done by 30 years of decline with a good five or six years of intense irresponsibility at the end. Unemployment stays a point or two higher than what everyone hoped, despite the fact that the opposition party has taken historically unprecedented steps (see http://voices.washingtonpost.com/ezra-klein/2010/12/breaking...) to unconditionally block any positive action the president might take, an unheard-of development that nobody anticipated.
Overall, if unemployment is your vector, the job creation records of George W Bush ("qualified") vs. Obama ("unqualified") could not be in more stark comparison: http://www.pensitoreview.com/2010/10/11/obama-created-863k-j... (Obama Has Created 863K Jobs in 2010, More Than Double Average Annual Creation under Bush)
This is your evidence that Obama is "unqualified", yet George W. Bush, largely responsible for the whole mess and virtually unopposed during his entire two terms is considered as "qualified".
This is an entirely policiticized point of view.