I just read a plethora (haha plethora...) of messages and now your saying you believe nothing... Why are you here pushing your nothing on people? Be it nothing, you are still arguing for it or you would not be here at all. Is it really just complete freedom of thought that you are for, with no restrictions? How can you think responsibly or objectively if you never experience commitment to something you believe, or sacrifice for that belief?
If you have a family and would "defend" them, then you do believe in something. That family means something to you and that you believe they are worth defending. I would think that is a sort of belief system.
If you believe that anything is possible then how can you ever tell anyone they are wrong about anything; therefor once again, why are you here disagreeing with people?