And when this behavior is being translated to more traditional city crime where residents typically are the ones calling the police for help, it also has the effect of demoralizing the factual reporting of such crimes (because "nothing happens anyways"), further decreasing the statistics which just become fake.

Then fast forward a few years, you end up in a situation like in San Francisco, where crime is clearly up to the roof everywhere you look, but you have local politicians saying - with confidence - that it is down instead.