Islamic extremists are hijacking the whole muslims
 

Activities of Islamic extremists ISIS for the creation of Islamic Caliphate under the caliph al-Baghdadi, creation of Islamic caliphate by Boko Haram in Nigeria, Hamas, Hizbollah, Al-Qaida, Daish, Afghan Taliban, Pakistan Taliban are all causing bad name to Islam and its principles.

Does the creation of Islamic caliphate is unlawful as the westerners are viewing it?

What are the causes of the creation of these extremists on Muslim lands?

isis was derived from al qaida due to some conflicts with alnusra group in syria,there are rumours israel is behind isis idea for its own safety,anyhow it is a long debate,its the most powerful and rich terrorist organization in world having more than 2 billion assets,and almost more than 80000 warrior...
and boko haram,hamas and other taliban organizations including I>S is unlawful,in islam there is no concept of dictatorship,exploiting minority,beheading people for political cause,killing civilians, so i am agreed with west it is totally inhuman.
the reason is simple as marx said, religion is opium of society and perfect way to attract people and to rule on them.so by using islam they are just attracting followers and getting fund by muslim tycons,