I'm interested in knowing what would be a valid use of safe spaces, according to the OP. The OP has clearly explained why they think safe spaces have gone too

I'm interested in knowing what would be a valid use of safe spaces, according to the OP. The OP has clearly explained why they think safe spaces have gone too far, but they've not said under what circumstances they believe that they are proper beyond a general acknowledgement at the beginning of the comment. In order to know what's too far, it's important to know where the line is.