Anyone I've talked with that believed in abolishing police understood that it would need to be replaced by some kind of other institution. Suddenly removing the police like that is therefore not a valid way to consider the abolishment of police in general.
I'm a bit surprised by someone who's familiar with an anarchist theory to be this naive about this stuff.
Today in Rojava (society in Syria based in part on anarchist principles) they are replacing the police with alternative institutions.
You can read more about it here: http://hawzhin.press/2020/06/01/how-to-abolish-the-police-le...