OP has correctly exemplified the idea of 'safe spaces' being used to silence debate and discussion. Thus allowing every individual to possess their own subjective truth, and conveniently dispose with hard realities when their beliefs are in conflict with said realities. This is exactly the same as the far right in America conveniently ignoring the reality of climate change.
I'm all for oppressed groups having a safe space and living their lives freely, but the danger here is individuals retreating to a 'safe space' every time life hands them lemons. We didn't progress this far in human culture by tip toeing around beliefs.