Fiddlers Green
The problem I observe, is that the brick wall is being shored up in some cases by popular opinion. Thus, it becomes hard to separate the irrational individual from the quasi-rational lemming. Authority for the voice of Truth must be established, or we cannot expect the casual observer to view the minority as more correct than the majority.
For example, back in the day when I didn't DA as much, what made me tolerable to the likes of Cu and the others wasn't that I agreed with them, but that I tried to go beyond "Because I/Ravenwolf/XYZ say so!" and I indulged premises and held actual conversations with them, while disagreeing.
We don't see that as often now- if at all.
I do see people honestly seeking to learn.
I do see people who are willfully ignorant.
I do see people who are knowledgeable to differing degrees.
I also see those who are insultingly ignorant and unwilling to take responsibility for their own words being openly hostile towards those who disagree with them- to the point of calling names.