Don't let this get to you, keep working to build a movement. I am sorry a lot of your friends are so unprincipled and have decided to act antagonistically toward you. it actually should be against their interests, but they live in an idealist bubble that is only maintained through policing the morality of other organizers through informal power structures and exclusion. These anarchist/chauvinists are in fact only a small minority even if they are very prevalent in inward-facing organizing circles, it is only a symptom of the defunct history & nature of the US left and the discontinuity in the US communist movement. However "very serious" these "organizers" are, they are not representative of the masses of people which is what we are looking to organize. Don't worry about them. I think their influence in the movement for Palestinian liberation is being very exaggerated in this thread, a lot of it seems to focus on the PNW. Most parts of the country don't have such a large anti-communist-left scene, and the student movement is a real mass movement that has incorporated so many different communities, most of this stuff becomes completely irrelevant day-to-day