I love a good, rollicking debate, too. But not everything has to be a debate, and if I'm trying to discuss, say, sexual assault with a group of likeminded individuals because we want to/need to/are working things out, no one is served by someone else butting in and demanding we prove levels of sexual assault and who's affected and how and show statistics. That's not debate. That's entitlement. That's the so-called naysayer assuming they are entitled to my time and effort, and sometimes, I just don't want to and shouldn't be required.
I don't think anyone is against making a group of like minded people. It's certainly not what I'm talking about. Even bringing up that angle feels like a straw-man because I don't care whatsoever about your private group and what you discuss. Nothing I posted has anything to do with that. I am not suggesting private groups include opposing viewpoints lol.
The safe space debate currently that is rubbing some the wrong way is pertaining to certain groups trying to make an entire campus their safe space and getting people fired or groups shut down because they are not in line with the viewpoints of the mob.