It's important to keep in mind which bodycam vids make it to YouTube and which don't. You are seeing videos selected for a purpose.
Some less than positive-for-police videos I've seen-
- a weak police officer doesn't take control of the situation and the officer standing behind the first one is shot and killed
- an officer, while chasing a suspect, tazes him as he exits the median grassy area and enters a lane of traffic. The suspect was killed by traffic.
- a forfeiture case where someone's life savings (cash) were confiscated without due process during a traffic stop