Yes

The sheer number of firearms in the US in 2023 vs the number of firearms that were seized as a part of this buyback are different by an order of magnitude, to the tune of ~650,000 vs >300 million firearms in the US. Such a buyback, if fairly priced, would be astronomically pricey in the US without any considerations on legality or culture. The nature of firearm homicides in the US is completely different from the Aussie situation at that time. Most homicides by firearm are committed by prior criminals, those who by definition flaunt the laws in this country. The buyback would be impotent…  Read more in reducing firearms ownership in this group, as many of these firearms are not legally held by the current "owner" in the first place. This country needs to come to terms with who we are in terms of firearm ownership, similar to Switzerland. Firearms are engraved in the DNA of our nation, and we need to offer significant education to all students on their use and safety. We also need to regulate storage of firearms and ammo in keeping with the "well-regulated" part of amendment 2.

While this would indeed help, it's likely that this would be blocked in congress. A voluntary buyback would be practically feasible while still lowering the assault weapons in the market. Strict regulations like background checks, psychological testing will lower the buying further and prevent the tragedies that are shootings.

Abortionists will argue "banning abortion won't stop abortions". The same can be applied to this debate - banning firearms won't stop public shootings.