If someone at work was writing blog posts with white-supremacist code, then yes, I would probably go to HR and they would probably get in trouble. Maybe they wouldn't be fired, but they would be placed on another team. And then the people on that team would find the blog posts, and the same thing would happen, and they would probably be let go at some point.

Because people that do that type of thing usually cannot shut up about it.

>Do you ask the political opinions of everyone you work with

they are the HR of IT ofc they do a ideological sniff test on anybody they even so much as talk to. Can't have anybody disagreeing in this tolerant space.