Regarding to European paganism, In "Modern Paganism in World Cultures: Comparative Perspectives" Michael F. Strmiska writes that "in Pagan magazines, websites, and Internet discussion venues, Christianity is frequently denounced as an antinatural, antifemale, sexually and culturally repressive, guilt-ridden, and authoritarian religion that has fostered intolerance, hypocrisy, and persecution throughout the world." Further, there is a common belief in the pagan community that Christianity and Paganism are opposing belief systems. This animosity is flamed by historical conflicts between Christian and pre-Christian religions, as well as the perceived ongoing Christian disdain from Christians. Some Pagans has claimed that Christian authorities have never apologized for the religious displacement of Europe's pre-Christian belief systems, particularly following the Roman Catholic Church's apology for past anti-semitism in its "". They also express disapproval of Christianity's continued missionary efforts around the globe at the expense of indigenous and other polytheistic faiths.