Antifa https://en.wikipedia.org/wiki/Antifa_(United_States) came from Antifaschistische Aktion(German antifa of 1930)
https://en.wikipedia.org/wiki/Antifaschistische_Aktion which was created by the Communist party of Germany
https://en.wikipedia.org/wiki/Communist_Party_of_Germany with one of its two founders being jewish .
https://en.wikipedia.org/wiki/Rosa_Luxemburg
But according to conservatives "Antifa are the real fascists". This is why conservatives lose when they can't even correctly identify what their enemies are. Antifa are neither fascists nor nazis, they are communists that the fascists and nazis had fought with.
If you know the enemy and know yourself, you need not fear the result of a hundred battles. If you know yourself but not the enemy, for every victory gained you will also suffer a defeat. If you know neither the enemy nor yourself, you will succumb in every battle.. --Sun Tzu art of war
Antifa did continue to exist. They only came to America in the last decade but they've been terrorizing Europe since being created