On the flip side of all the conservatives who don't like the 'defund the police' slogan, some food for thought:
If crime goes up, the police go to the public and say they need more money/officers/guns to keep them safe.
If crime goes down, the police go the public and say 'see what a good job we did?' Keep giving us the same amount of money or the criminals will come back and you won't be safe.'
Regardless of what the crime statistics are, if the public try to cut police budgets, or push back on police solidarity, then the unions close ranks and tell them that if they don't get the money/officers/guns they want, crime will go up and nobody will be safe. In extreme cases, you will have police choosing not to respond to calls to punish certain districts, or have precincts call off with the 'blue flu'.
And when an officer shoots a civilian--regardless of what that civilian was doing, regardless of what they were accused of, regardless of how armed or unarmed they were, police will always close ranks and claim the shooting was justified. The officer who did it gets a few days of vacation (administrative leave), paid for by the public. If the shooting is particularly egregious, then he gets fired, and the department sued--but the public still has to pay for any damages, not the PD budget, and there is absolutely nothing keeping that officer from moving to the next department and getting a new job.
I appreciate that police have a tough job, and I used to give them a lot more of the benefit of the doubt. ('A few bad apples' and all that.) But the more I learn about how departments operate, the more I feel like there are far too many out there that are acting less like law enforcement and more like a protection racket. 'Give us money and don't question what we do, or you won't like what happens to your neighborhoods.'