i agree there is silence but that is mostly among indian muslims who sadly through their corrupted islam version managed to influence many others in the world in the last 15 years.
didn't you see the war in libya and syria?? most of the victims were muslim, most of the perpetrators were muslim... the victims were not silent, they fought the reactionaries for decades, whether by arms or by intellectual challenge.
you must ask yourself this question before blaming muslims - whenever there are muslims in the world who have used progressivism/socialism to take control of their society, it always has been the western governments who have armed the reactionaries and brought those societies to destruction, so why are western governments not the primary criminals in anything bad that happens in the world??