That's not particularly close to what I said. I am talking about the outgroup being able to participate in the "public square of free expression", in a way that is actually free for them to speak to the ingroup.
These conditions do in fact represent "actual" freedom. Basically if you support people insulting and ridiculing Nazis (which I do), you should support them insulting and ridiculing anyone else on the same principle.
> civilly-expressed criticism of themselves and their worldview [0]
or where they should expect to be ridiculed and insulted? And why would anyone sane want to regularly participate in the latter?
As to why people would want to participate, I suspect it's for the usual reasons: to accomplish a goal, or to gain influence and social status.
Edit: Surely you agree that sometimes rudeness is warranted, and that people in fact are rude on Twitter?