Of course it's interesting, but it's also a rather subjective issue. I can see the Christian side of the argument, but I also understand the Islamic side of things, as well.
The Christians tend to read into the violence of the Koran, but convieniently ignore all instances of violence in their own Bible (Canaanite genocide, for example, or Jesus saying that he came "not to bring peace, but the sword). Christians also tend to judge Muhammad according to Western European standards, while sort of ignoring the fact that 7th century Arabia isn't the same place as, say, 21st century America. Christians also like to forget the violence that Christianity has done unto others, from crusades to inquisitions to forced conversions. The legacy continues in the 21st century, with an avowed Christian, President George W. Bush, giving orders for the American military to invade and occupy two (Islamic) countries. In comparison, the Islamic religion suffers from theological and doctrinal stagnation (as does Christianity) and, like the Christianity, has a history of intolerance and violence against others, be they other Muslims, People of the Book (Jews and Christians), Hindus, et cetera. If the case is made that Muhammad was a terrorist, I'd say it's equally fair to accuse Jesus of the same. The only thing that differs in Islam is that the factionalism is less than it is in Christianity (Sunni and Shia as compared to literally thousands of denominations of Christianity).
Christians have a deep-seated set of beliefs, and Islam is a very real threat to this religion of theirs. They see over a billion people who honor the holy writings of the Jews and Christians, and who are gaining ground on them in terms of numbers. Oppositely, Islam, rightly or wrongly, feels hemmed in by the Western countries. All kinds of accusations fly back and forth and blood has been spilled and is being spilled right now. It isn't pretty.
