Maybe a better way to put it is: not all Muslims are Wahabi or Shiite maniacs. By definition within the Arabic language all Muslims really are “Islamic” since the word “Muslim” means one who submits (Aslama means to submit and Islam is the imperative form of the verb). Likewise Mujahid means one who does Jihad and Mujahiddin is just the plural form for that noun. The people tend to be nuts but their language is quite logical.
See 75. I don’t need you carrying water for me.
[Arabic 'islām, submission, from 'aslama... to surrender, resign oneself, from Syriac 'ašlem , to make peace, surrender, derived stem of šlem, to be complete; see šlm in Semitic roots.]