If states like NY and CA intended to just continue to pass laws in an effort make the courts decide on each issue, what's stopping a federal court form striking down the law in its entirety and allowing permtless carry?
This is essentially what happened in DC in 2014 when the court struck down DC's ban on carrying. For three days anyone, who was not a criminal, could carry a firearm in DC open or concealed.
Palmer v. District of Columbia
The court stayed the order only after DC agreed to pass a law that would allow people to carry a firearm outside the home.
It seems to me that a court could see that the new laws are full of infringements and just throw out the whole law.
If states knew there was a chance of that happening, there would be a better chance of them passing laws that are constitutional in the first place.