Why has the market plunged?

The WSJ offers the following statement about the current market and economic indicators. These are powerful words.

Our Troubled Economy Is a Response to Barack Obama's Policies - WSJ.com

"The market has notably plunged since Mr. Obama introduced his budget last week, and that should be no surprise. The document was a declaration of hostility toward capitalists across the economy. Health-care stocks have dived on fears of new government mandates and price controls. Private lenders to students have been told they're no longer wanted. Anyone who uses carbon energy has been warned to expect a huge tax increase from cap and trade. And every risk-taker and investor now knows that another tax increase will slam the economy in 2011, unless Mr. Obama lets Speaker Nancy Pelosi impose one even earlier."