Hindus generally respect the holy books of other religions as well. Christian and Islamic fundamentalists flout their holy book and are ever quoting from it to justify their actions and their beliefs. Fundamentalist groups are often involved in conversion activity wherein they are seeking to get other people to adopt their beliefs. They frequently promote missionary efforts throughout the world to bring the entire world to their views. This again is true of many ordinary or orthodox Muslims and Christians.
Fundamentalists are merely more vehement in their practices.