Antifa has become the “Big bad bogeyman” by those on the political right. I don’t think they understand or know what Antifa is. Antifa is short for anti-fascist and is a political movement, not an organization.
Photo from https://www.wnycstudios.org/podcasts/otm/segments/antifa-speech-free
“The warning signs before the Capitol riot” from Vox
