That is not, in fact, what is being called for. If you want to learn about the movement, which is admittedly very poorly and inaccurately named, you can go here:
https://www.rollingstone.com/politic...olice-1007254/
The basic idea is the police would continue to perform the function you are joking about, protecting people and property from violent assault, but they would no longer do a lot of the things we've come to expect them to do and which they aren't really trained to do. From the article above:
"Police themselves will admit this — that they are being called to respond to situations beyond the scope of their job. “We’re asking cops to do too much in this country,” Dallas Police Chief David Brown said in 2016, after five of his officers were targeted by a mass shooter. “Every societal failure, we put it off on the cops to solve. Not enough mental health funding, let the cops handle it… Here in Dallas we got a loose dog problem; let’s have the cops chase loose dogs. Schools fail, let’s give it to the cops… That’s too much to ask. Policing was never meant to solve all those problems.”"
You focus on preventing problems caused by social forces like racism, poor education, and poverty rather than relying on heavily armed people to deal with the consequences of those problems even though it's outside of their training. So you take money from the police and shift it to after school programs, addressing homelessness, treatment for mental illness, drug abuse prevention and treatment, and things like that. Makes sense to me, but it's a stupid name because it leads people to draw the wrong conclusions about what it intends to do.