From Cal Matters:

However, if anything, what happened just two blocks from the state Capitol underscores the folly of believing that “gun violence” can be meaningfully reduced by trying to choke off the supply of firearms – any more than the prohibition of liquor or the war on drugs succeeded.

The state’s gun laws have hassled law-abiding hunters and gun hobbyists and some are in danger of being declared unconstitutional. However, Californians already own more than 20 million rifles, shotguns and handguns and are buying hundreds of thousands more each year.