Think seriously about whether it’s worth a Carry Concealed Weapon (CCW) permit in states where you’re likely to get screwed by a jury if you use it.
So it's better to face of an armed attack with harsh language?
That isn't what he's saying, he's saying that if you live in a state that opposes SD You want to think about the consequences before you go through the hassle and expense of getting the permit.
I don't know NYC's self defense laws but they are the poster child for "Antigun".
Lets say you spend the hundreds or thousands of dollars in fees and bribes needed to get a NYC permit.
If you actually need to use it you stand a very good chance of being portrayed as a "vigilante" and facing the exact same charges as if you had been the criminal.
For myself, if I lived in a place like that I would save the money, avoid the notice and just pick up a private sale "throwaway" that no one would know I had unless I needed it, then , considering the low closure rate on murders I would just shut my mouth and walk away, ditching the piece at some distance.