Indeed; Remember, people that develop a toxic world view honestly hold that view. It is genuinely the way they see things.
As such, they are unwilling to admit that the way they view the world is in fact-- toxic.
They are unwilling to get rid of the APCs, riot gear, and other hyper-militarized police gear, because as they see it-- they need those things. (because everyone but other cops are subhuman scum.)
Again, prevention is better than cure. However, because (in our country at least) we just fucking love to ignore problems until they reach completely pathological levels, then stand around and go "What happened!?" when it all flies apart at the seams, we have let this problem fester for fucking decades on end, and now all sides of the issue are firmly entrenched into their positions, and those positions drive a feedback loop.
Eg-
Cops are overworked, because cities, states, and the nation in general don't want to allocate more resources as populations grow, and require more police presence.
This makes cops become more and more jaded, as their caseloads become more and more comprised of "Really really scummy people(tm)".
Cops begin to treat all citizens like "Really really scummy people(tm)".
Citizen trust in the police drops.
Cops interpret this natural reaction as reinforcement that "Everyone out there are really really scummy people(tm)", and become even more antagonistic.
Citizens now consider cops on par with criminals.
Cops treat all citizens like child rapists-- (EG, people that deserve no quarter.)
And it all started because "DO MORE WITH LESS! YAY!!"
Again-- The REALLY REAL solution to this problem, is to NOT give these police districts APCs and paramilitary gear. (No matter how "on sale" it is from the US government.) The Really real solution is the begin repairing the damage our police system has incurred, both internally to the cops themselves, and with the public at large, by mandating better mental health policies and hiring more police officers, so that the work load is not 90+% scum of the earth, and better reflects what the REAL criminality rate is in the country. That way cops do not develop the toxic world view, and treat citizens properly. Citizens then return to trusting police, and we have fewer and fewer instances of "Thin blue line!" bullshit happening.
When our police forces are basically the Stanford Prison Experiment, shit gets real fast.