I see this all through one concept, that Islam will not have a true idea of what the world wants, thinks, or believes until there is Freedom of Conscience. Most comments on here strongly religious or strongly anti- answered by that right.
To convince people and to respect their convictions is what the Biblical Faith is about and what the USA was founded upon. Our freedom originated in people fleeing the Old World so they could live and worship and think as their conscience demanded.
I simplify, but not much. After years that is my answer
The Universal Declaration of Human Rights (UDHR) is a milestone document in the history of human rights. Drafted by representatives with different legal and cultural backgrounds from all regions of the world, the Declaration was proclaimed by the United Nations General Assembly in Paris on 10 December 1948 General Assembly resolution 217(III) A as a common standard of achievements for all peoples and all nations. It sets out, for the first time, fundamental human rights to be universally protected.
Everyone has the right to freedom of thought, conscience and religion; this right includes freedom to change his religion or belief, and freedom, either alone or in community with others and in public or private, to manifest his religion or belief in teaching, practice, worship and observance.