I only passively followed the Damore fiasco and out of curiosity went and read his memo[1] just now. "that spaces created by men aren't necessarily as welcoming to women" doesn't feel like the major theme of his piece. The major theme feels like "practices that specifically promote women and non-white races are discriminatory, unfair, and it is hurting Google". I"m quite sure he was treated unfairly, but I don't think your characterization of his piece is consistent with its content.

[1]: https://firedfortruth.com/