Final answer:
Osama bin Laden is the individual who ordered his followers to violently reject all things "un-Islamic." His ideologically extreme views contrast sharply with those peacefully focused leaders like Mahatma Gandhi, Martin Luther King Jr., and Nelson Mandela.
Step-by-step explanation:
The person that fits the description in the question is Osama bin Laden. Osama bin Laden was the founder of the extremist group Al-Qaeda. He is known for his fundamentalist interpretation of Islam and the ordering of numerous violent attacks, including the September 11, 2001 attacks in the United States. In his communications, he often urged his followers to violently reject things that he perceived to be "un-Islamic." This is in stark contrast to Mahatma Gandhi, Martin Luther King Jr., and Nelson Mandela, who advocated for nonviolence and peaceful resistance.
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