My, perhaps unpopular, opinion is that email/chat/even lunchtime workplace discussions can easily escalate to something contentious/distracting, will make at least some people uncomfortable, and are probably sensibly approached by either keeping your mouth shut or voicing generic assent with the reigning political ethos in the organization.

By all means, talk among your friends circle after work at the bar. But I don't have a lot of interest in engaging with a lot of political conversation that I may or may not agree with.