The group I mentioned is precisely defined, and 100% opt-in—it's the set of all people who say "I'm only intolerant of intolerance."

all members of the group are irrational and should be ignored

Are you accusing me of thinking that? Because I didn't say that, and I don't think that. Reread my comment: saying "you'll likely be met with vitriol" implies that the converse—that you won't be met with vitriol—is also possible.