Such immunity only applies to leftists. If you are a conservative at many places of work, you hunker down and don't say a peep no matter how offensives things may be to you. No "First Amendment scholar" would ever speak in your defense. This is just another example of the double standards that exist all across America in the 21st century.
Non Leftist professors have a differing opinion
“””Regarding her tweets, Turley said federal workers “are not allowed to support or oppose a political party or candidate for a partisan political office or partisan political group while at work or wearing a uniform,” meaning that “if she advocated for the Socialist Party or made social media protests during work hours, she could have serious ramifications.””””