This is not restricted to the Netherlands alone-the same reasons were attributed to Pakistani Muslim youth going after Hindu youth in the UK.& it's not about Muslims alone!!!Ive read that Pakistani & Bangladeshi Muslims in the UK are real jealous of their Indian Muslim counterparts given that they are in relatively better positions.I remember a pretty controversial BBC survey in 2001 which said that Indian Muslims in the UK were 4 times more likely to get employed by non-Muslims than Pakistani or Bangladeshi ones.The figure for Hindus,Sikhs & Christians were ofcourse much higher.
On top of that, Muslims consider Hindus "idolators," worse than Christians and Jews. Christians, Jews and Zoroastrians are considered "People of the Book" and have a few rights under Islam. "Idolatrous" Hindus and Buddhists have none. Muslim hatred of non-Muslims seems to be innate.
Funny thing is that there is less "radical" (relatively-speaking) Islam in Morocco than in most other Muslim countries. Plus, the Berbers of North Africa (who make up about half of the population of Morocco) are adamantly opposed to Islamic fundamentalism because they, correctly, associate it with Arabization and are staunchly opposed to that! Berbers dislike Arabs.
The period of Islâmic conquests and empire building marks the first phase of the expansion of Islâm as a religion. Islâm's essential egalitarianism within the community of the faithful and its official discrimination against the followers of other religions won rapid converts. Jews and Christians were assigned a special status as communities possessing scriptures and called the “people of the Book” (ahl al-kitâb ) and, therefore, were allowed religious autonomy. They were, however, required to pay a per capita tax called jizyah , as opposed to pagans, who were required to either accept Islâm or die. The same status of the “people of the Book” was later extended to Zoroastrians and Hindus, but many “people of the Book” joined Islâm in order to escape the disability of the jizyah. A much more massive expansion of Islâm after the 12th century was inaugurated by the Sufis (Muslim mystics), who were mainly responsible for the spread of Islâm in India, Central Asia, Turkey, and sub-Saharan Africa