There are two reasons why the East Coast gets hurricanes all the time, but the West Coast almost never does, not including West Coast good karma.
The main reason is that hurricanes form in tropical waters, and in the northern hemisphere tend to travel toward the west-northwest.
As a result, Pacific Ocean hurricanes tend to head away from North America, off toward the Pacific Islands and Asia, while Atlantic Ocean hurricanes tend to head toward the North American coast, stepping onto land now and again to scatter some mobile homes.
The second reason is that the water temperature is too cold on the West Coast to maintain hurricanes for long.
The Gulf Stream along the East Coast comes from the tropics, and hot air rising off the warm waters feeds hurricanes and increases their power.
The currents along the West Coast come from the Arctic, so the water is about 20°F colder.
Even in the rare occurrence that a Pacific hurricane reverses itself back toward the mainland, the cool air saps its energy pretty quickly.