A few excerpts from A. Y. Mol's article, Quranic Cosmology
God does not demand worship as He is without need as He is Samad (112:2) and AlGhani (3:97), self-sustaining and completely needless, He is complete and does not need anything to gain status or be acknowledged for its power.
God does not care what you believe, only when your believes will create behavior which will harm others (11:117 which says God’s Laws will not turn against a people as long as they are Muslihoon, (people who help others in their society).
Believing in one Creator is a confirmation of the truth, a correct conclusion made after observing the Universe (6:75-79), which clearly shows there is only one authority running the laws of the Universe.
To create a progressive world society, mankind must accept these basic principles of a secular scientific and socio-economic world system. Thus does the Qur'an does not promote a religion nor a theocracy. It views all people as equal beings, where righteousness is the factor that determines your development. The Qur'an does not demand a state to rule, but world participation in striving for betterment for all. This form of Qur'anic secularism is slowly being worked too by Mankind.
Thus the Qur'an predicts that Mankind will eventually accept the values and goals given in the Qur'an (9:33), making all of Mankind Muslim *66, submitting and cooperating towards peace. But the Qur'an also states not all people will be convinced of the divine origins of the Qur'an (12:103), but this will not matter as long as they agree on the values and goals presented by the Qur'an, and the people being contributors towards betterment of the world (13:17, 11:117).
The persons who are convinced and agree with its goal of creating global peace are addressed as Mu'min, people who are entrusted with the security of peace on earth for all beings. Persons who oppose the basic human rights and do not uphold peace are called Kafirun, those that bury the rights of others. The Qur'an does not present a religion, but a guidance to a correct God's image, a correct view on the Universe and urges mankind to unite towards peace and progress whatever beliefs they may have.
*66 --- a Muslim is a person who acknowledges the general values of peace and freedom and makes sure these are secured for everyone on Earth. It is not a religious title, but a secular description of someone's values and goals, not his personals beliefs.