Actually James Damore first sent this "manifesto" privately to the Google diversity board privately and got no answer. Then he went higher up the corporate ladder again keeping his concerns private, but someone spread the document to all Mountain view employees and the disaster unfolded. From my understanding James Damore loved his work and thus wanted to improve his working environment by raising these valid concerns. I can see no reason where one could fault him of this mess in any way. Hopefully the court will agree with this view and fine Google of wrongful termination of employment.