The response inside Google was "I will keep hounding you until one of us is fired. Fuck you." And Damore was fired for the memo; the person who wrote those words stayed on.
It should be telling that after the fact he chose to idolize the KKK and proceeded to dox a bunch of Google employees for incredibly tame remarks in his class action lawsuit (of which I saw many images make the rounds in the alt-right media centralizing said information for obvious reasons).
Regardless his memo which he chose to release internally caused a massive divide among employees a Google. If Damore was kept on I imagine you would've saw a lot of talent proceed to leave the company. Additionally it's funny that you bring that up, considering there are a lot of people on the left that work at Google and feel like their views are being stymied.