> This is just fear disguised as innocent concern.

This is literally what "good moral standing" clauses in almost every state's carry permit schemes was meant to do. It's a way of getting around the 14th amendment's equal protection clause without explicitly saying "black people can't have guns" - they'd just rule on a "case by case" basis and determine that almost no black person had "good moral standing" instead. How these rules are actually applied has evolved, but it boils down to the same idea - people the cops don't like don't get guns, doesn't matter if it's a reasonable concern over public safety or because they don't like an applicant's accent.

Police oversight is already basically nonexistent when they choke someone to death, what makes you think there's sufficient oversight to avoid misconduct in the permit issuing process?