Do you feel the same way about the kkk? Islam is an evil religion. Its members are either devout and ready to murder non muslims or they are not really muslims them selfs.
What you seem to be missing is that there are plenty of people who call themselves Muslims but are not ready to murder non-Muslims. Maybe that makes them bad Muslims, particularly in the eyes of the Islamofascists but they call themselves Muslims. What else would you call them? What Muslims believe is no more monolithic than what Christians believe and if every adherent to a Holy book followed it to the letter, why is it, for example, that so many "Christians" accept casual divorce, a practice Jesus clearly and distinctly spoke out against, including those from a sect that actually does aggressively oppose it (Catholics) and why do so many Catholics support legal abortion when their church opposes it? We can debate about whether they are good Catholics or bad Catholics but they call themselves Catholic yet don't agree with even their own clergy. Plenty of Muslims are the same way. What you are doing is basically the same as saying "All Catholics are anti-abortion" or "All Catholics are anti-divorce" or "All Mormons are pro-polygamy" and there are certainly Catholics and Mormons that will tell you that all good Catholics or Mormons believe those things but those assertions are no true in any useful sense. Why is that so hard to grasp?