Does it make any difference that Sirhan Sirhan, a Palestinian, was born a Christian? I can't seem to find any record that he converted to Islam, at least officially. He was, at various times, a member of Baptist and Seventh Day Adventist churches, but he doesn't seem to fit the Muslim Extremist profile. Source: http://www.crimelibrary.com/terrorists_spies/assassins/kennedy/4.html?sect=24
There is no question that he was anti-Israel and he killed RFK because he felt that Kennedy was pro-Israel.
There is a difference between profiling and statistical analysis. Statistics show that the most dangerous drivers are young (under age 32...that's young to me!) and male. That is simply stating a fact. The same with this "quiz." Most recent acts of terrorism against the United States have been commited by young, Islamic militants. Again a fact.
One might infer that young, Islamic militants don't like us and haven't for quite some time, predating the invasion of Iraq. To which I would comment "Duh!"