Nazis are used as bogeymen for everything bad that happens today despite the fact they dont exist. National Socialism died when Hitler shot himself.
I think Hitler took the Antifa colors on purpose when he founded the Natsoc party etc. Theres sauce somewhere but i cant find it atm.
Guys the "antifa" flag image is a altered National Front flag. Here is the specific article the picture originally came from.
https:// www.irishmirror.ie/news/world-news/three-arrested-deadly-weapons-seized-7279305