Academia can and should be a place where some extremism exists politically correct or otherwise.  Few scientific discoveries or even social theories could exist in the absence of extremist views.  Is this really a rise of Academic extremism attacking White men or a rise of victimization felt by some White men because their position of privilege is under threat, thereby proving such a position of privilege is systemic?  If the accusations and positions of the "attackers" in the article are ridiculous they will be proven so and dismissed over time.