It is not difficult to destroy Islam. Islam is the pumped up ego of a megalomaniac psychopath. Muhammad was a narcissist madman. Just as a huge balloon can be deflated by a small needle, all it takes to make Islam explode is to ridicule its loony inventor and its brainless followers.
The first thing Islam does is to destroy the self image of the believers. It convinces them that without Islam they are worthless creatures only fit for hellfire. It tells them that their culture is jahelyyah (ignorance) and their ancestral religion was taaghoti (satanic). They are made to despise their identity and selfhood and seek their glory in their submission to Islam and slavery to its deity who was Muhammad's own alter ego.