You didn't refute anything in the comment, other than saying one part of it was correct. This comment would be more useful if you actually made an argument.
And to be clear, my "argument" is that the parent poster is objectively incorrect, which is accurate. I decided not to posit on why the parent poster made an objectively incorrect statement, though I am curious.
This is your statement: "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"
That statement is incorrect, no matter what your definition of "modern police force" is. That's it. It's not complicated, despite your attempts to deflect from the invalidity of that statement.
Thanks for confirming you knew exactly what you were doing as well. As I said at the start of this, I don't understand what you get out of intentionally making inaccurate statements, but I don't expect you to explain that.
You just made an inaccurate statement that supports your implied argument, because reality does not.