Okay, losing vacation days does imply a significant lack of paid income. But at every other job when you do something that can or does get someone injured or killed you get fired.
It is useful for police to have a gun (but not required!), and they should know how to use it. However that doesn't mean they should use one off the practice range.
Edit: The list as a whole is horrific. Bullying, racism, sexism, corruption and incidents that resulted in death.
FWIW framing things as if officers' job is to perform violence on behalf of the state is a big part of the problem. The state's monopoly on violence should be in the hands of the courts, and not individual officers doling out punishment. Police officers should be seen as citizens getting paid to do a good job at something that any other citizen could do if so inclined.
I would generally agree, but at the end of the day any state prohibition must eventually be enforced by some level of violence or more mildly, coercive force.
One could write several books about the nonviolent crimes US police have killed people enforcing. And this is my point. The arm of the state must be reigned in somewhere.