Antifa is not a single organization: it is a movement or coalition of leftist groups, each of which claims to combat “fascism,” a political ideology whose definition academics have been arguing about for decades. The word Antifa itself is a truncation of anti-fascist.
The "In-Game" version of Antifa and their various allies are just as much a force of hate that specifically and systematically target regions and nations that in their eyes are pro-white, conservative, racialist, National Socialist or Fascist by any means. Any region using the Fascist tag or having embassies are targeted.
You don't have to be a white heterosexual male to be a target but Anti-fascists' always need someone to blame for their socioeconomic condition or degenerated cultural norms and traditionally conservative whites make easy targets for victimization.
To fight Antifa is to simply say NO to their race hatred and violence and secure your city, state and country by enacting policies of strong social reform that binds your people together as one while allowing minorities to lawfully reside.
In national unity Antifa can not stand and will crumble.