Freethought today embraces adherents of virtually all political persuasions, including capitalists, libertarians, socialists, communists, Republicans, Democrats, liberals and conservatives. There is no philosophical connection, for example, between atheism and communism. Atheism is not a belief. Lack of faith requires no faith. Atheism is indeed based on a commitment to rationality, but that hardly qualifies it as a religion.
Secular humanism has no god, bible or savior.
It is based on natural rational principles. Freethought is reasonable. Freethought allows you to do your own thinking. A plurality of individuals thinking, free from restraints of orthodoxy, allows ideas to be tested, discarded or adopted. Freethought is respectable.