Islam (just like all other religions) weakness lies in rational thought - because its mostly made up of bullshit that is forced in to immature minds during childhood indoctrination. Islam, despite its apparent threatening invasiveness, cannot survive the simple words "prove it"
Children must be taught to think critically, logically and rationally. Then only can they have the mental strength to question islam. To attack islam is to educate, educate and educate.
Least religious countries have the best education system and the best quality of life (finland, japan). Most religious countries have the worst education system and the worst quality of life (Afghanistan, Pakistan, Sri Lanka)