That is an actual "solution" people always bring up. "Fire your gun, that'll sure keep them away!"

These people have clearly never heard the countless stories of people making 100k+ in Brooklyn who are all like "yeah when I moved out here I heard gunshots all the time." If they can't afford the housing closer to their job they'll come here whether we like it or not, can either build new housing for them or let them take over existing housing.