From texaggy:
The irony here. She's saying 3 Percenters, Proud Boys, Patriot Front, et al, will become the right's version of Hitler's Brown Shirts, aka SA, aka Sturmabteilung. If you know history, this is hilarious. Hitler created the Brown Shirts as his paramilitary wing because the Nazis needed protection. Their rallies were subject to invasion and violence by Germany's communist party (KPD) and their paramilitary wing, the Roterfrontkampferbund or the Red Front. The literal great-grandchildren of the Red Front today are Antifa. I don't know anything about Patriot Front, but if they were bringing shields to a Pride event, I'm guessing it was to ward off attacks by other groups, especially antifa. So Tannehill is accusing Patriot Front et al. of being Brown Shirts while ignoring the reason these people need protection at rallies, i.e. the liberal paramilitary wing known as antifa.
Is…is he defending Nazis?