When I was a prosecutor, I had six lawsuits filed against me by people I prosecuted or their families. These ranges from wrongful death (a woman I prosecuted for a string of burglaries was sentenced to 20 years. She hung herself after 20 days). The mother sued, seeking 1.9 million in damages and unspecified punitive damages. Theory was if I hadn't prosecuted her, she would be alive. Suit was tossed because of sovereign immunity. Another time, I was sued by a guy I prosecuted...burglary again...for depriving him of his civil rights to liberty. Again, sovereign immunity. If they co.pletely eliminate the immunity, people who work in the system will become more of a target of these suits, and will be forced to defend against them on the merits. Which means lawyer fees. A lot of good people will leave the work to avoid that type of vicious litigation.
I agree that it shouldn't be a complete ban, but there should be protections still available.