Tom Tanuki had a great video detailing some speakers and attendees standing up to them, along with pointing out their plain clothes stooges manufacturing fake support, starting using the same chants in each state, and their other manipulation tactics. The video has been taken down by a copyright claim (edit: see reply!). I also know a couple of socialists who were present in the rallies to provide updates, who felt the crowd was a 50/50 split for support and rejection when the Nazi speaker got the mic. And after seeing horrible interpretations of the event like that from Red Flag (basically imagining every single person there was a white middle-class lost cause), I emphasise that many people there were tricked and didn't just roll over or use their megaphone like Katters.

But yes. You're right. Head in the sand has been something I've seen plenty of too, and this time they have no "ignorance" excuse. Nazis ran the major rallies. We weren't just calling people 'nazis' as a scary strawman, they were real, they controlled the rallies, and they are planning to do it again.