Apparently dictionary atheism means that, if you’re an atheist, you should just shut up about abuses committed against atheists, because atheism is exclusively about “not believing in gods.” The words “decency” and “respect” don’t appear anywhere in the dictionary definition, and therefore atheism is not about atheists treating each other decently and respectfully. As an atheist, you’re allowed to say that you don’t believe in gods, and that’s it.
Unless, of course, you want to complain about the people who are speaking up about abuses against atheists. Then it’s a different story. Complaining about other atheists is perfectly acceptable, regardless of what the dictionary definition of atheism is, as long as the atheists you’re complaining about are reporting genuine problems. Somehow, magically, the dictionary definition of atheism only rules out legitimate complaints of abuse. It can do that, somehow.
And we think that believers are the ones who get their authority from magical books.