TBF a lot of the US policing experience is down to a lack of money for numbers and equipment, a lack of job security and the state of the US economically and politically.
You end up with poorly paid people driving, often by themselves, around areas that have been wrecked economically and socially (often deliberately) for decades and expected to sort things out whilst armed with a gun. They also have a good idea that, if things do go wrong, they'll either end up dead or fired and compo paid to the victim / their family. Meanwhile somewhere in the state someone else is driving around in an APC with all manner of ex-military tactical gear.
What should happen is proper reform over there, not defunding but a proper debate on what they expect cops to do.