I suggest Googling "safe space" again and reading much more extensively.
Start with the articles from the New York Times, Atlantic, and Los Angeles Times.
RL is wrong. It is not a conservative term. In its current usage, it was invented by progressives. Originally intended to protect minorities from abuse, the concept expanded drastically, particularly on university campuses, to stifle any ideas progressives don't want to hear, or let anyone else hear. It now often involves, as we just saw in Berkeley, active and sometimes violent suppression.
The man with the camera in this video is a student reporter.
And yes, it's fair to say that the vicious attacks on any opposing views here qualifies this board.