I absolutely agree that you should know how to shoot and show responsibility. (I've comp shot for a long time)
I also think that any carry should be legal. I should have full advantage when it comes to my personal protection, don't take that away from me. I carry everywhere legal. I don't expect to get in a shootout, I don't want to. I always wear my seatbelt, I don't expect to get in a car crash, I don't want to. I just want it if, hopefully never, I need it.
However, if you open carry in today's time (around town) you are an idiot (law aside) as it would make you a target and comes with a plethora of different problems that it's not worth the hassle.
California has and always will have a population problem. Mass concealed carry might help with deterring crime, might help crime. I just don't want to live in a state that won't let me protect myself reasonably.