should one discuss it wherever possible, voice it until i get kicked out, etc

That would be my instinct. Do it loud. Do it hard. Do it with planned talking points like “Free Iran like how they freed Iraq? How is Syria doing with all that freedom? America has never made anywhere better. All they ever do is steal, murder, and r pe. Even their own country is a shit hole because of the actions of their government. anyone who thinks a free Iran involves the USA or israel is a zionist fascist who belongs in Barbara pit mine.” and when anyone pushes back You say “Oh look a running dog for imperialism. Are you getting a paid by the CIA or are you a soulless monster for fun?” “anyone associating with these running dog of empire is not my comrade. I can forgive ignorant liberals but I expect comrades to know better than to support american interventions.”