There is Nothing wrong with teaching a child how to handle and respect a firearm. Obviously the potential buyer has little confidence in the ability of police to protect individuals. Most of the time when cops respond, the crime has already been committed and the victim has already been identified.
Cops are here to enforce the law. But it is up to individuals to protect their Constitutional rights.
I think there's a little more going on than teaching a child how to handle and respect a firearm. The father is teaching that kid how NOT to handle a gun. We either have a future jihadist or future gangbanger here.
There is nothing wrong with teaching a child how to handle a firearm, but teaching a child to "kill everybody" is definitely pushing it.
Obviously the potential buyer has little confidence in the ability of police to protect individuals.
For a buyer in New Orleans, that's definitely very believable.