This is much ado about nothing.
When Florida liberalized its concealed carry laws almost 20 years ago we heard the same teeth gnashing and wailing from liberals and Negro civil rights leaders about "vigilantes", "racism" and "lynching." Now, almost 20 years later, no Florida licensee has been convicted of anything more serious than DUI or low level drug possession (i.e marijuana). During the same time period, police officers on NYC and LA PD's have been convicted of drug dealing, money laundering, burglary, murder for hire, obstruction of justice, etc.
In my world the cops would be disarmed and the citizens would have guns, but that's another issue.
Several years ago there was a similar controversy about a new law allowing motorists to shoot carjackers in Louisana. Apparently car jacking was increasingly common and this was one idea floated as one answer. All the liberals wailed about "vigilantes" and the Negro "civil rights" leaders wailed about "racism" and "Lynching". [Why do Negro civil rights leaders automatically assume that all carjackers are also Negoes?]
Well, the law was passed. That was years ago. Has anyone heard of a single shooting of a car jacker by a Louisana motorist? I haven't. I have heard that car jacking became much a less popular pass time after this law was passed.
The same thing will happen with this law. There will be the usual teeth gnashing from liberals and Negro civil rights leaders and it will die and become a dead letter.