Earlier quoted context omitted.
just to make this explicit, protecting civilians has never been the purpose of modern police forces. they were developed to put down rebellions/catch slaves/protect rich people's property
Just to make this explicit, you are incorrect. There are plenty of instances where you would be correct, such as the origin of police forces in the American South (which were initially slave patrols), but that doesn't mean you are correct in all instances. I'm not sure what joy you derive from spreading misinformation, but you should probably reconsider it.
So saying something that is correct but not for all cases (which ones would those be) is now "spreading misinformation"?
I'm not sure what joy you derive from dismissing statements you already acknowledge have an element of veracity with some blanket label of "misinformation", but you should probably reconsider it.