Revolution Muslim: The Neo-Khawarij
Here is a clip that explains the Kharijites effect on contemporary Islam:
What Revolution Muslim is doing would be no different than having a Muslim become a Fundamentalist Christian and then promote fiery evangelism and the ideologies of the "Hutaree" Militia. This is a very interesting dynamic, "Revolution Muslim" is run by the Ex-Israeli Jewish convert to Radical Islam and appears to be recruiting like minded people. The group itself is a modern day "Khawarij" that quotes Bin Laden & Al-Qaeda. Coincidentally there are many Jews and Christians that convert to Islam, however they are normal people and many of them are very smart intellectuals. Some very popular figures in the normal Islamic scene come from Jewish and Christian backrounds. However, these fringe groups that make a mockery of Islam by producing extremist beliefs and products are a danger not only to Non-Muslims but to Muslims and Islam itself. These people are misguided and think they are doing good, however in reality they are doing a lot of bad things against God. Islam is a faith of peace and tolerance, so much so that the Prophet Muhammad (pbuh) allowed a pagan Arab to urinate in the Mosque and then explain to him what Islam is. Once the Pagan Arab learned what it is and saw the tolerance of Islam, he converted to Islam and brought the rest of his tribe to Islam. However, groups such as Revolution Muslim, Al-Qaeda, Taliban, etc. hurt Islam and the Muslim community (Ummah).
Here is a clip from a TV show produced by a Muslim producer called "The Cell", which speaks of the real threat and he says "some Muslims are trying to transform Islam for political purposes":