I learned a long time ago that when you make a choice to bear discomfort, it makes it much, much, much easier to bear. So having a safe space means you can handle the distressing topic, because "if this gets to be too much, I know I can go somewhere safe and comfortable."

That link also has one of the worst uses of the slippery slope I've seen. "It's not that safe spaces are inherently bad, though I'm arguing that they are. It's how they'll be misused, and you know they will be!"

Oooh, scary shit there. College students might make mistakes. That's never happened in the history of education until "safe spaces" were invented!