I don't recall Protestants denouncing en masse Eric Rudolph or Jim Jones or Elmer Gantry wannabes like Joel Osteen or Protestant clergy pedophiles, or even Protestant attacks on innocents during the Troubles in Northern Ireland. In not one sermon did I hear 'blowing up those Catholics was bad' nor did I see it on TV. So no the Protestant Christians don't really get that right as a whole. The vast majority think 'that has nothing to do with me, what my family and I believe or how we worship', which is I suppose how the vast majority of Muslims think. All of which makes the Jews speaking out against Bibi's actions in Gaza all the more admirable.
That said, I recall very well that during the Jemaah Islamiya terror attacks in 1999 and the early 2000's, Muslim clergy all over Southeast Asia denounced them and their tactics loudly and often.