Muhammad Qutb(Brother of Sayyid Qutb) wrote the following:
“Hence, as soon as they are militarily stable, the crusader invaders take a step ahead by removing the Islamic Shariah from power. But this step alone would never be enough. Because it doesn’t stop Muslims from returning back to Shariah. Therefore, their shariah itself must be changed in a way they would never even consider going back to it.
This is exactly what the crusader invaders had in mind – An intellectual invasion of educational curricula and the media.
They thus replaced the religious education that used to teach people that ‘Islam is the essence of the Muslims’ lives and that ‘whoever doesn’t rule according to what Allah Almighty has revealed then they are the disbelievers’, with the secularist curricula”