Antifa is a Russian Communist Organization. They have been banned in all of Europe. But i do understand why the Left loves them, because the Left embraces communist ideals
There is little benefit in blaming the Russians. The problem starts with our own people.
We have plenty of home-grown totalitarians in every country and in every generation. They are people who want power over others, and the Leftist ideologies provide them with a ready-made system to attain this. As does Islam.
Effective resistance to this infection requires individual and cultural intolerance of the people who spread the disease.