>If you believe that people should be free to say things without fear of censorship, even if they're things that you don't like, then "safe spaces" are a really bad idea.
While censorship in the total sense is a bad idea, there is some need for contextual awareness that some anti-censorship people try to gloss over. You shouldn't be able to go into a Catholic mass and yell over the ceremony and then claim "censorship" when security/police come to remove the disruption.
People congregate within certain parameters because there's an agreed-upon premise that is to be used as a foundational basis for further exploration and which is not open to debate within the prevailing context at the time. There is a place for "safe spaces" insofar as they involve civil and voluntary peaceful assembly for a common purpose, places like churches and trade shows, where people are expected to accept some basics as forgone conclusions at least for the duration of the meeting.
Thus, while I am free to publish a post on my blog that is scathingly critical of node.js without invoking the wrath of government or institutional censors, I should probably not feel free to present "node.js: used exclusively by idiots" at a node.js conference in a non-satirical way (the conference organizers would probably quash this talk; I could either cry "censorship" or just accept that the venue was an improper place to try to make the argument that node.js is used exclusively by idiots, no matter how fervently I may or may not believe that).
For further example, if there is a strictly pro-thing subreddit that has rules that state only pro-thing things should be posted, instead of becoming upset at the "censorship" and decrying it as a "safe space", I should move on to a subreddit that has moderation policies and basic premises that I find more agreeable and allow those who favor a positive interpretation of thing to continue to assemble peacefully.
I hope we don't lose respect for free private assembly whilst trying to point out the absurdity of the SJW's "safe space". The SJW "safe space" is bad because they essentially mean that they should have a force field that protects them from coming across any idea or concept in public that they don't agree with, which is of course ridiculous. Traditional "safe spaces", i.e., venues that control the direction of the conversation and allow their attendees to freely come and go, are not bad.
This is only tangentially related, but I just wanted to jump on here as I think the quoted bit is a potential example of anti-safe-space rhetoric that could be used to imply that the control of the message at private meetings constitutes a free speech/censorship issue. There is a place and time for some things, and that's fine. I hope you'll forgive my extrapolation from your statement here.