I'm not sure I understood your comment correctly, but I hardly think either group thinks a large black market would be good for their cause. The difference I s

I'm not sure I understood your comment correctly, but I hardly think either group thinks a large black market would be good for their cause. The difference I see is that the anti-saloon league obviously underestimated how large the black market would be for alcohol. I would not be surprised (in fact, it seems to be a talking point) if the NRA is purposefully overestimating the size of a potential black market for firearms. But I'm totally speculating here.