What is a "safe space" and why do we use it to make fun of people here?

What makes you think that we're making fun of people who need safe spaces? I don't see anything funny about it. In fact, I think that it's a very frightening concept. Life is full of hard choices and it takes courage to face them. These adult-children who can't bear to hear dissent or opposition are poorly prepared for the harsher realities of life. Ultimately, they make very poor citizens. Have you ever been a lifeguard or simply learned the rudiments of life saving so you are able to help a friend or family member in trouble? If so, you were taught that there is nothing more dangerous than being around a person in a panic. They'll grab onto anything, which might just be you. That's how many would-be rescuers end up being victims themselves. Well, these adult-children we see crying over a disappointment like a child denied an ice cream cone are like drowning people. And because they are adults with adult rights and privileges, they have the power to take us down with them. Imagine yourself in a tough spot and the only one around is one of them. You might make the mistake of depending on them for assistance and end up in worse trouble than if you had been alone and forced to rely upon yourself. No, no one is making fun here. No one is laughing. Me? I'm terrified of them and I'm terrified for our nation because of them.

I am not sure where the term originated, but, I suspect as a place where one can avoid the triggers that cause him/her problems.

However, it has become a term for a place where one can go to make sure he/she does not here what they don't like to hear.

I believe safe spaces originate from therapy/psychological counseling/whatever you want to call it. The reason people make fun of those that "use it" is because currently we have a generation usurping the term safe space as a place to silence any dissent. You are not allowed to have an opinion that differs in these "safe spaces". People's egos are becoming so fragile that they can't even handle their own ideas being challenged. So it's not that people are making fun of those in need of mental help, it's more like people are making fun of those that can't handle their opinions being challenged.