Negative perception of Islam grows

Responding to recent poll numbers that suggest anti-Muslim bias is on the increase in the US, Paul Woodward asks what I think is an unfortunate, but logical, corollary:

During the last four years, in increasing numbers, Americans of most political persuasions, Judeo-Christian and secularist, have regarded 9/11 as emblematic of an Arab/Muslim threat. Yet this fear wasn't born on that day. As James J. Zogby wrote recently in an op-ed on the Dubai port deal, "smearing all things Arab remains the last acceptable form of ethnic bigotry in America."

During the same period that American xenophobia has been squarely targeted at Arabs and Muslims, tens of thousands of Americans - most of whom identify themselves as Christians - have been personally responsible for killing tens of thousands of Arabs, nearly all of whom had nothing whatsoever to do with 9/11. Should this be the basis on which Muslims judge Christianity?