One big difference is that the unpopular opinion can still be allowed to exist. In other words, it is still possible to find neo-Nazi social media in the US. (

One big difference is that the unpopular opinion can still be allowed to exist. In other words, it is still possible to find neo-Nazi social media in the US. (Yes, there's been some issues on this front with some of the more visible sites due to certain Internet corporate CEOs getting "caught up in the mob", but organizations like the EFF are allowed to push back with counter-opinion -- https://www.eff.org/deeplinks/2017/08/fighting-neo-nazis-future-free-expression https://www.eff.org/deeplinks/2017/08/fighting-neo-nazis-fut...). It is still possible to find the Google employee manifesto online, as well as social media both sympathetic to these opinions and completely disagreeing with them and anything in between. In many cases of government censorship, unpopular causes and opinions simply disappear. They for all practical purposes don't exist. You are not allowed to talk about them at all, at least in public.