Tbf, NOPD don't arrest many people anyway. There's a massive cop shortage, only 944 officers for a city of 364,000 with skyrocketing crime rates. Moreover, they've been operating under a consent decree by the DOJ since 2012. They're overworked, underpaid and under the thumb of the feds so in response they simply don't do shit.
The cops in my city were under a DOJ consent decree for like 20 years, and it didn't make them any less effective. They're actually worse now, because they actively don't give a fuck.