To me, there is a big difference between discussing politics and preaching politics. I do want my company to tell me not to discuss politics with coworkers who are willing to discuss it. Not dicussing politics, especially with people who have a difference of opinion, is what leads to rage filled echochambers that are so common now. However, I do not want people preaching politics unsolicited at work though.

I think politics being a taboo topic is an attempt to keep workers in order and ignore any political or environmental impact that their own company might have.