California is also just on the wrong coast. You almost always want to launch eastward so you get the free rotational velocity from the earth to help you reach orbit, for the same reason you want to be as close to the equator as possible, and you can't (regulatory/safety wise) have a flight path over land. From within mainland US the only reasonable options are Texas and Florida.

The exceptions to this are polar orbits (for which the rotation of earth just doesn't help) and the rare military spy satellite that wants a retrograde orbit for ... reasons. The US/SpaceX does launch out of california for those orbits, but it's a small fraction of launches.