Wild to suggest that the US's issue is not incarcerating enough people considering we are near the top of the global leaderboards on that front. Specifically in comparison to Germany, the incarceration rate is almost 8x higher in the US.
You are also ignoring how the unprofessional nature of police contribute to the problem. Their behavior creates an adversarial relationship with the public. This has all sorts of negative repercussions. It helps escalate crime because cops are now more dangerous and less predictable, so people will go to greater lengths to avoid arrest or interaction with police. It also makes the cops' jobs more difficult as the community becomes less likely to cooperate in stopping or preventing crime. Hiring more cops can make matters worse because it can necessitate lowering the bar to find enough people to hire leading to even less professional behavior. It also creates more interactions between police and the community which as I mentioned, is often an adversarial interaction due to this unprofessional behavior.
Simply hiring more cops and throwing more people in jail isn't going to fix things. That should be obvious because that is all we ever seem to attempt in the US and the situation isn't getting better.
You are also ignoring how the unprofessional nature of police contribute to the problem. Their behavior creates an adversarial relationship with the public. This has all sorts of negative repercussions. It helps escalate crime because cops are now more dangerous and less predictable, so people will go to greater lengths to avoid arrest or interaction with police. It also makes the cops' jobs more difficult as the community becomes less likely to cooperate in stopping or preventing crime. Hiring more cops can make matters worse because it can necessitate lowering the bar to find enough people to hire leading to even less professional behavior. It also creates more interactions between police and the community which as I mentioned, is often an adversarial interaction due to this unprofessional behavior.
Simply hiring more cops and throwing more people in jail isn't going to fix things. That should be obvious because that is all we ever seem to attempt in the US and the situation isn't getting better.