The core motivation of the 2nd amendment is not crime protection, but against invaders and tyrannical government. These possibilities are remote but their consequences are hard to revert.
Gun ownership obviously is not an only safeguard. If you look at countries in the world, the most stable ones are former British colonies – ahead of French/Spanish/German ones. This seem to include both countries with majority settlers (US, Australia..) both also countries with local majorities. Either Brits were good at real estate or there is something in their legal/social system.