Islam is growing rapidly and is now followed by more than 20% of the world's population. Christianity is not growing; its popularity has been stuck at about 33% of the worlds population for many decades. It is in decline in the United States (in terms of "market share"). Christian attacks on Islam are inevitable. Most criticisms are not well grounded in reality:
Islam is often blamed for female genital mutilation. But it is obvious that FGM is a cultural not a religious issue within those countries where it is practiced.
A number of anti-Islamic books have been written recently, criticizing some Islamic countries for lack of religious tolerance, equality for women, lack of democracy, etc. One of the most famous of these books is "Why I am Not a Muslim" by Ibn Warraq, an ex-Muslim. Many reviews by readers of this controversial book are available on-line from the Amazon.com web site. An excellent rebuttal of the book by Jeremiah D. McAuliffe, Jr., titled "Trends and Flaws in Some Anti-Muslim Writing as Exemplified by Ibn Warraq" is at: http://idt.net/~balboa19/warraq/warraq1a.html
Some conservative Christian web sites include attacks on Islam. They base their position on the inerrancy of the Bible, and their belief that Christianity is the only valid religion. An essay by Ric Llewellyn at http://www.seafox.com/islam.html is typical. He makes heavy use of emotionally loaded, judgmental terms, such as: false religion, false doctrines, dubious beginnings, fanaticism, irrational, accursed, religious , cults, wicked doctrines, etc. It is our belief that these attacks are counter-productive. The main result of these web pages is to demonstrate the degree of intolerance and hatred held by their Webmasters; this does not reflect well on Christianity.
The media has historically disseminated a very negative image of Islam. It overwhelmingly reports on the beliefs and practices of the most conservative wing of the religion. Many non-Muslims are unaware that a moderate wing even exists in Islam. A number of anti-defamation groups have been organized to combat these negative portrayals. CAIR, The Council on American-Islamic Relations is a leader in this field.