Social agendas are promoted through public education and the media. A typical example starts with movies and television portraying a yet to be accepted social behavior in a humorous way, then progressively show that behavior in a positive light, then ultimately ridiculing those who oppose that behavior.
When a large enough percentage of the public considers that behavior normal, politicians get elected and change laws to discriminate and eventually criminalize those who do not embrace those views. The homosexual agenda has successfully employed this method.
The Islamic agenda is just beginning to use this method. In Canada a new television series, "Little Mosque on the Prairie," portrays the experiences of a Muslim family in a typical American city.
William J. Federer, What Every American Needs to Know About the Qur'an, pg.232