Utterly unsurprising as the majority of SV employees are in a demographic that leans heavily left and has been shown (over and over) to brook no dissent. Duh.
Yeah, Trump supporters, libertarions, social conservatives and all others who are not lock-step mainstream liberals have a hard time when they expose themselves in a work environment mostly staffed by liberal millenials. This is not a surprise nor something even worthy of discussion.
Don't talk politics at work or at Thanksgiving dinner. It's not that hard.