The People v SC ruling is a mixed bag. Some bad, but I'd also say a lot good.
You're right, the courts reasoning behind their decision that carrying a switchblade on private property, including in ones own home violates the switchblade carry statute (21510) is ludicrous. Just goes to show how dumb high-and-mighty judges can be.
For those reading this post, but who haven't read, or won't read People v SC, here is a relevant quote from the courts ruling-
"we conclude that the statute (21510) is violated any time a person carries a switchblade knife on his or her person, regardless of where the possession occurs".
They also specifically refer to carrying in ones home, and other references to carrying on private property.
But lets look on the good side of the ruling-
I have seen it said here at Bladeforums, and elsewhere online that there is a total ban on the possession of switchblades in the state of California, a statement I strongly disagree with. I say that there is a considerable amount of evidence to the contrary. I will take this opportunity to provide just some of that evidence, specifically from the People v SC ruling. Every reference to a switchblade throughout the rest of this post is a refence to the legal definition of a switchblade in the state of California, with a blade 2" or longer.
In their ruling on People v SC, the court refers to CA pc 653k (what is illegal to do with switchblades), but the statute numbers were revised since this ruling, and 653k is now 21510.
First- The court went into great detail regarding what is illegal to do with switchblades in California, but nowhere in the ruling did the court make any reference whatsoever to a total ban on the possession of switchblades. They could have, they could have simply said that it is illegal to possess a switchblade under any circumstances in California, and that would constitute a total ban on possession, but they didn't, and that is significant.
They did repeatedly refer to "carrying" a switchblade on ones person as being illegal, inferring a total ban on the "carrying" of switchblades on ones person, but not mere "possession", and that too is significant.
In fact, the court specifically said things that make it obvious to me that there is no total ban on the possession of switchblades, and that it was not the courts intention to create such a ban.
For example, here is a quote from the courts ruling regarding switchblades in vehicles, one of the topics they covered in detail- "a conviction cannot be based on the presence of a switchblade knife in the passenger area of a car when the car is located in a nonpublic place."
Now, if there were a total ban on the possession of switchblades in California, that ban would naturally include switchblades in cars located in nonpublic places. But the court specifically said that a switchblade in a car in a nonpublic place is not a convictable offense.
Another quote- "it is not a violation of section 653k (21510) to keep a switchblade in the glove compartment, as long as the car is parked in a private garage."
Again, when the court says that it's legal to have a switchblade in the glove compartment of your car when it's parked in your garage, then in my opinion there is clearly no total ban on the possession of switchblades in California.
Another good thing about the ruling, nowhere did the court say that it is a crime to receive or purchase a switchblade. They reaffirmed that it is illegal to sell, offer for sale, expose for sale, loan, transfer, or give a switchblade to any person, but no mention of receiving or buying.
So although the court did rule that it is illegal to carry a switchblade on private property, including ones own property, and even in ones own home, lets look on the bright side- in my opinion, the court also confirmed that we here in California have the right to own switchblades, that there is no total ban, and that it is not a crime to purchase, order, or receive a switchblade. And that ain't nothing

.
And besides, who's really gonna know if you're carrying a switchblade in your own home or on your own property

.