A bit of a self-fullfilling prophecy not reporting to the police because they won't do anything, isn't it? If everyone did that the police couldn't prove they are overworked and would even have less chance of increasing recruitment in future (ok so that's very simplified, but you get what I mean).
I had a woman basically run me off the road (with my 7 year old in the car) a few weeks back, then followed me home all over me, then got out (at my home) and started hurling random abuse at me. All documented on rear and front dashcams and house CCTV, I assume mistaken identity but it didn't make it any less terrifying. Anyhow, reported if for no other reason than she was clearly off her face. The police didn't even ask for the footage.