I'm going to start this as a YouTuber would, with the most outrageous part first. Nicky Flippers is a racist who is actively participating in policing practices worse than what are currently even in the real world.
Before we get there, let's talk about the rest of the cops. Every police officer in the entire movie is blatantly incompetent and should be removed from the force. The chief charges people with no evidence and doesn't even listen to the victims in the situation. The crane gets extremely excited about the prospect of putting a literal child in a cage. The pigs are constantly destroying evidence and arresting people just for looking at them weird (aka being creepy) AS WELL AS falling asleep on the job and letting things under their protection get stolen and people they were supposed to be watching run away!
That list is just from memory so it's likely a lot longer. However, it's also worth noting that at no point do any of the cops do any actually good police work.
Back to Nicky Flippers...
One of the first things Nicky does is comment on a bear sleeping in a cave. We see nobody else sleeping anywhere other than a bed, including the animals (most notably the goat who showcases his bed during the song be prepared). This feels to me like a hurtful stereotype that Nicky is perpetuating.
Next he comments on a coworker's weight. Which is bad on its own, but that coworker is also a pig... Another hurtful stereotype......
Later we see him use the term Loon as an insult which causes offense to the crane. Now he's moved from stereotypes up to potential slurs!
He is careless, he constantly insults those around him, and he steals food during an investigation! The only positive trait this man has is his dancing which he refuses to do anymore.
ACAB!
Edit: idk how I forgot this but Nicky Flippers OWNS A PERSON?!?!!?!
He has a sentient pet!!!
This isn't a Pluto vs Goofy situation either. The dog he keeps on a leash does work for him. He has an employee on a leash and makes him keep the records for all his investigations! I don't think this is even close to justifiable even if you think the other stuff is potentially okay.
Nicky Flippers OWNS a person!