Simon Hankinson has written about lessons learned since 9/11, emphasizing the need for immigration reform and an end to perpetual wars. He discusses the incompatibility of Islamist ideology with Western civilization.

According to Hankinson, groups like al-Qaida and ISIS are opposed to Western civilization and seek its destruction. This ideology is seen as a significant threat.

Further details on Hankinson's views are available from the source, providing more insight into his perspective on the lessons learned since 9/11 and the need for reform.