Points to address from earlier.
1) ISLAM is not a RACE. Islam is a religion. People of all races (white, black, asian, hispanic, etc.) have a choice to believe in Islam or not believe in Islam. If one is against Islam, they are not racist. Fundamentalist Islam is a CHOICE people make. As much as people preach "tolerance" I am not tolerant of people whose religous choice, whether it is Jewish, Christian, or Muslim fundamentalism calls for the death and destruction of innocent people in the name of their religion. None of us were able to choose our race. We are all able to choose our religious beliefs.
2) If you say that people who generalize all Muslims into a group of terrorists are racist (incorrectly using the term racist), then people who do the same in terms of Christians are racists.
3) Everybody keeps going back to Timothy McVeigh. He was an agnostic. Please provide evidence where he specifically carried out the OKC bombing in the name of Christianity. See link below for further links about McVeigh's religious beliefs. Because he is a white male, you automatically consider him Christian, isn't that loosely some form of racism by your definitions?
http://uk.answers.yahoo.com/question/index?qid=20101017154906AAWa4bY
4) The Crusades happened a long time ago. Violence in the name of religion is not excusable. If you look at the terrorist attacks happening TODAY, in modern society, not hundreds of years ago, you do not see a SUSTAINED PATTERN of Christian fundamentalists bombing random innocent people in the name of Jesus Christ. You do see Islamic fundamentalists bombing groups of random innocent people in the name of Allah - there is a big difference there.
5) If you want to go back to history, we should then say that Germans are evil. Think of all those Germans who killed Jews during the Holocaust. So, Germans are evil, right? The actions that happened in WWII do not reflect Germans today, just as the actions which happened in the Crusades do not reflect Christians today.
6) If you want to say that the actions of Islamic fundamentalists are appropriate since the US Military (not US civilians) often maim and kill people in the Middle East, you have adopted an "Eye for an eye" mindset. Therefore, you should strongly be in favor of the death penalty for any criminal who is a murdered. If killing is justified as a form of revenge, the death penalty is therefore justified as well. If you argue that the death penalty is inappropriate because there is a possibility a person could be wrongfully convicted and put to death, and thus innocent, you then agree there is no excuse to kill innocent people. Then you must agree, the terrorists have no excuse to kill innocent people either.