These are actually not at all popular strategies anymore (at least not in the U.S., where support for the idea has been waning for years) because they have created an explosion of exploitative prisons and outrageously racist judicial outcomes. We're trying to figure out our way out of this mess now.
"Defund the police", btw, isn't "fistfights in the streets"; it's "how about instead of buying the PD another tank we spend the money on... I don't know, mental health care, addiction treatment, and houselessness support?"
(For those outside the U.S., yes some of our police departments have tanks. No, I don't get it either.)
This all outside the purview of this thread however.