"Does the Judeo-Christian ethic and/or Western Culture and/or the American system of justice impute guilt on a group basis...?..."
"In a time of war it does..."
Yes, we have to recognize that one side is playing to win while the other side (us) are playing at getting along and playing at fairness. Today more Muslim immigrants are legally arriving in the USA and more Mosques are being built in the USA while we send pork-free MREs to our soldiers in the Middle East and warn against Christian displays there.
Well, sir or madame, you go ahead and blame 30 women who swim in Lady-of-Fatima swimsuits in Seattle, WA for the actions of four men who mass-murder people in London, UK.
But please don't pretend that has anything to do with the Judeo-Christian ethic and/or Western Culture and/or the American system of justice.
Our very distinctive civilization thinks in terms of justice and fairness to individuals, not a crazy-quilt system of resentments, punishments and pay-offs to class, caste, color and kin.
(Isn't that the liberal multi-cultis' specialty?)