He's right, as an investor. But he's dead wrong if he thinks the market is not the final judge on his policies. The market is tanking because they have no faith whatsoever in his policies to date or the people advising him. And most Americans with 401ks are not patient people. Even if they aren't retiring for 20 years they still look at those statements every month and increasingly wanting to spit on him. If this market is still under 7500 by August, Obama will be finished as a useful President.
I would certainly agree that the market loathes Obama right now. However, I would caution people on using Obama as a barometer of the market. Go back and read what FDR said about bankers when he was running for President. His rhetoric was off the charts, calling them a blight and a cancer on society, railing against them in a manner unheard of today. In fact, the last leg down of the market in 1932 is thought to have been influenced by the market's fear of what FDR would do as President. And he did implement policies that were very anti-business.
However, stock prices were substantially higher when he died in office. Why? One reason was because the economy got moving again. The other reason is because stocks were dirt cheap when he entered office.
Today, what has Obama done? He has chided bankers, moved slowly to offer a solution to the banking crisis, presented a budget that is being questioned as useful as stimulus, and is threatening to reform healthcare. On a scale of 1 to 10 in terms of how he'd rate versus FDR in terms of spooking the market, where 1 is low and 10 is high, he'd be at 1.5. But the market freaks out anyways since expectations were so high.
I'm willing to bet almost any amount of money that the stock market will do better under Obama than Bush, and that is not a judge on either man's policies. It is because of one simple fact. When Bush came into office, stocks were near their all-time high valuations, guaranteeing that stocks were going to be a poor return during his Presidency, no matter what his policies were. Now, stocks are at very low valuations, (almost) guaranteeing that stocks will (probably) do very well over the next several years, (almost) no matter what Obama does.