Knives are one step away -- I don't think the gun is as important in this case.

I'd argue for sensible gun control, but removing guns period could destabilize victims too. Having a sense of safety and security in the event of a home invasion, etc, is incredibly important. Not having that/taking it away feels like the easy paper solution, but is possibly much more harmful in the end (like forcibly institutionalizing people in local mental health hospitals, I'd note).