Your’e right. Perhaps the best place to start is to enable the collection and proper analysis of needed data. But the gun problem in the US is, in a large part, cultural. Why are assault weapons collected? How did a 13-YO have access to a gun? Why are some people so intent on demonstrating that they can legally carry and display weapons? Guns are fetishized. Laws that may not demonstrably show direct effects on shootings, might in some cases just make guns slightly less accessible or accepted over time. The passing of even weak laws might strengthen and broaden social interest in deeper examination of gun laws and gun culture. Perhaps it could even embolden some lawmakers. Current regulations seem disjunct from public sentiment. I recognize your point, though, that ineffective or misaligned laws can be counter-productive.