I kinda thought you might put it together, but ok. Yes, those were rhetorical and obvious.
Police are responsible for police culture so pointing to culture doesn’t absolve them or change any of the math here. Same with the laws, they may not directly make them or have a say in them (unless you count police unions), but they can choose when to enforce them, when to not, and against whom. Again, your arguments aren’t changing any of the math here.
The problems of police are caused by the police and sustained by the police so they are entirely the fault of the police. Your comment seemed to imply that at least some of the blame should be taken from the police since it’s not them it’s the culture and the laws. I’m saying, it’s still all them. The culture and the laws are still on them.
That’s a separate claim you’d have to prove. We have no evidence of something triggering it, we don’t even know that it would need to be triggered. All of our observations occur inside this universe, therefore we have no idea at all if cause-and-effect even applies to the universe as a whole. The short answer is: we don’t know and have no reason to posit the need for something else.
What does it mean for something to be “beyond” everywhere or before time?