You're conflating a political movement with a company doing PR damage control. Google management didn't "call him names".
You're not thinking about it like a corporate manager. Google is trying hard not to be seen as just another Frat startup like Uber (albeit an older one). They are actively trying to hire the best engineers in the world and this memo just put a dent in their hiring process for 50% of their potential hiring candidates.
> Fight bad ideas with better ideas, better arguments.
Of course.
The irony is that social conservatives are usually the ones to cry foul when an employee sues a company for firing the employee for social/cultural reasons. Now that the shoe is on the other foot, both political poles are shown to be hypocrites.