IS/ISIS are not Muslims, they are Israeli Jews. ISIS stands for Israeli Secret Intelligence Service. Taliban were created by United States of America and they accept that. Hillary Clinton accepts that they created, armed and funded Talibans to fight Russia.
Islam does not allows terrorism or killing of any person. Killing of one person is like killing whole humanity, says Islam. These terrorists are 99% Non Muslims Israeli Jews but the 1% are brain washed Muslims who are taught wrong about Islam. Such Muslims gets excluded from the religion of peace, Islam according to Islamic teachings.