Think, for a moment, about what the free software community looks like from the external gaze. "Bloody Communists" - I've never actually had a businessman say this to me when I've been explaining free software, but I'm sure they've thought it. I suppose the smarter ones might have thought "anarcho-syndicalists". Choosing to use free software may be simply economic, but contributing to any such project is surely a political statement.
So what is this statement? I'm not the person to write your statement, but I can offer mine.