People are downvoting you because you are clearly not arguing in good faith, using phrases like "think of the children," which is a phrase used nowhere near as often as certain groups claim it is, while they parody it to shut down opposing viewpoints in discussion.
That being said, I'd also like to point out that "abolish the police" isn't saying "remove police entirely." It is saying that police, in their current state, should not exist. It's saying that police not be the ones who handle someone having a psychotic episode, and that part of the money going towards police should fund trained healthcare professionals instead. That police shouldn't be handling the homelessness problem, and we could redirect some of their funding to create public housing instead of throwing them in jail over and over. We shouldn't have police handle truant students, and arresting them certainly shouldn't be the only option available if they continue to do so.
It comes down to the fact that police forces and unions have too much power. And of course that leads into the larger discussion of the fact that police can say "we thought this person was committing a crime" and steal everything in your car with almost no recourse to get it back. That police have incentives to make any given arrest at the end of their shift to accrue overtime, and that most police organizations have no limits on the amount they can accrue. That police forces are getting increasingly militarized even as violent crime is going down worldwide. Or that they can shoot and kill almost anyone and say "well I felt that my life was in danger" and that's the end of the discussion. And that if in the unlikely event they are fired, they still keep their pension and can be hired a precinct over with no repercussion. That there are no means for reasonable oversight of these organization to make sure they are acting in the public's best interest. That police unions actively fight to keep all of these policies in place instead of working to build trust in their organizations so that we don't have these problems in the first place.
It's not a discussion of "I only want the parts of the government that I like to have funding," it's an objective look at an arm of the government that has far more power than it should by pushing every existing law and statute to the limit while everyone looks the other way, and an objective view at what society-benefiting services we could fund (that would reduce the need for police in the first place) if we chose to fund them instead of massive police forces. If we had an education system where you had one teacher the entirety of your career, who had no oversight on the curriculum they taught, could assign grades at random based on how they liked each student, that was unable to be terminated, and if they did lost absolutely nothing, you can bet that we'd be here protesting that as well.