Well obviously nobody is fired for that.

But we obviously don't want to socialize with the right-wing bigot so you missed the lunch meeting where we discussed the future roadmap. I'm not stopping by your desk to ask your opinion about feature X or ask for help with a blocker issue.

Peer reviews bottom out because they are so subjective and manager reviews reflect your very real lack of contribution to the team without the context of the fact that you've been shut out.

It's damn near impossible to fix this in a legislative manner and I'd be a hypocrite if I advocated for such a solution.