We often spend more waking hours with our colleagues than our friends and family, forming strong bonds and friendships.
I've been lucky enough to work with intelligent people originating from many parts of the world, and have enjoyed stimulating discussions that include geo-political and social issues.
While there are a myriad of reasons why one could feel bad about facing a day in the office, I personally find sexism and harassment to be particularly heinous, and indicates weakness of character more than a lack of ability.
Something I worry about is the possibility of a work environment where the free discussion and conversation I mentioned above is inhibited. Especially one in which "acceptable" conversation is not politically neutral, but instead favouring progressive viewpoints exclusively.