It feels like Europe and other places have a much more reasonable and nuanced view. Police get funded, and well funded, but the job requirements are strict, and the emphasis is more about public good and safety. If there's a crime the police do exist and do show up but they also don't shoot people dead in their house at 3am.
It's pretty clear that police unions allow for a lot of this institutional rot and inability to address abuse. I fear that the left doesn't want to recognize that unions are capable of becoming institutional agents of oppression and injustice. Yet reforming public sector unions is perhaps one of the most practical and effective steps to correcting the malfeasance of police as we know them today without fundamentally changing how they operate.