A Moderate Muslim don't preach or practice radicalism!
To remain a Muslim AT ALL, a Muslim may not take the side of non-Muslims against Muslims. This means he may not fight fellow Muslims, or report on fellow Muslims to non-Muslim police. Thus the radical alligators can swim in the swamp of "moderate" Muslims without fear of exposure. You have to drain the swamp
Seize them and put them to death wherever you find them, kill them wherever you find them, seek out the enemies of Islam relentlessly. (Sura 4:90)
Fight them until Islam reigns supreme. (Sura 2:193)
Cut off their heads, and cut off the tips of their fingers. (Sura 8:12)
Allah threatens the Muslim who does not make war on the "unbelievers" with death. (Sura 9:39)
How is a "moderate" Muslim supposed to deal with this?
Thank You!