“When I asked another class what responsibility we have to explain to others that terrorists don’t represent all Muslims, the response was mixed.”
Probably because it is a blatant lie; except for a few Muslim homosexuals that have fled to the West (who claim to still be Muslim), the silence on the part of the other 99.9999% implies consent with their actions. When the US had to accustom airmen to the idea that they would be bombing civilian populations in WWII, they rationalized it by saying the civilian populations were enabling the military authorities. This is no different.
“the silence on the part of the other 99.9999%”
I would say that most Muslims actively support the terrorists. When asked under conditions where they do not need to lie as is their habit, they seem to almost always speak in support. The silent Muslims with reservations might be 10%. Maybe less. The peaceful Muslim is one who is not really an adherent, too stupid to know what they have bought into, or a liar.