...Moreover, they will still be protected by civil service laws that provide job security and perks beyond anything seen in the private sector.
The majority of those benefits are mandated by Wisconsin's Municipal Employment Relations Act (MERA), section 230 of the Wisconsin Code (the code) entitled "State Employee Relations," and other civil service laws.
They read (fairly, IMHO) the provisions of the code (see the link.)
One item of note:...Every new employee who has worked one to five years automatically receives 104 hours off annually, with the vacation time increasing substantially every five years. Those working for over 25 years get a whopping 216 hours off each year -- almost five and a half weeks!
Which does not count holidays.
BTW, to my knowledge the last 5-weeks-vacation after 25-years' employment in the private sector in Wisconsin went bye-bye about 20 years ago. I think it was at JI Case in Racine.