Some of the worst areas to live should things turn bad are Baltimore, Chicago, D.C., Detroit, Los Angeles, Philadelphia, and San Francisco. Why? Because citizens won't be able to protect themselves. Pretty much the only people with guns in these areas who have nefarious intent, are those with unregistered weapons.
If things went bad in places like Birmingham, Charlotte, Charleston, Columbia, Dallas, Helena, Lincoln, etc., more people would be afraid to break the law because if they enter places they don't belong, they can be shot by people with registered weapons. If someone is kicking in or using a bat to break a window and rob a store, they can be shot in the process of breaking in; the owner doesn't have to wait until they enter the store.
The safest places for those who don't believe in the 2nd Amendment or do and don't believe in assault rifles, are in the homes of those who do. What's even scarier is the direction the Democratic Party is going. Many of their leaders want to make certain weapons illegal. Have gun collection sites where they pay a certain amount of money for each weapon. Then if someone has a registered weapon and doesn't turn in their weapon, they'll get a warrant and forcibly remove the weapon from the individual's home.
Guess what this leaves? The government can't track those who don't have registered weapons so they go uncollected. At this point the criminals will have the most powerful guns and rifles. I hope you don't think they'd never try it because it's already been on some of the Democratic candidate's platforms.