It's really hard to massacre people with a knife. That's the point that people care about, not stopping violence altogether.
I agree that these proposals make no sense. It's the sort of aforementioned impractical moonshot that shuts down any real improvement.
I'm pro gun, anti massacre. I think most sensible people have the same position. If I could have my wish, it would be this...
- Access to bolt action rifles remains as it is.
- Access to all other firearms have requirements that are proportional to their risk. For example, "assault rifles" are only available to people that have undergone rigorous education and evaluation.