Dear One,
We have been through this a dozen times. Antifa cannot be billed out because there is no such movement or organization. It is a cross between a western form of martial arts and punk rock fandom.
Since this has not been getting across, I’ll create an example. Suppose some Dodgers fans who are trained to use ninja knives, kill a Giant’s fan. Nobody would be asking the city of LA to condemn it. And everyone would understand that the Dodgers are ballplayers, and not street warriors. Same here. Antifa is not a political ideology. Politicians do not know of it, any more than journalists tell them.