Stephen Prothero, a professor of religion at Boston University, says in the Boston Globe that it is misleading — and dangerous — to think that religions are different paths to the same wisdom.
At least since the first petals of the counterculture bloomed across Europe and the United States in the 1960s, it has been fashionable to affirm that all religions are beautiful and all are true. This claim, which reaches back to “All Religions Are One” (1795) by the English poet, printmaker, and prophet William Blake, is as odd as it is intriguing. No one argues that different economic systems or political regimes are one and the same. Capitalism and socialism are so self-evidently at odds that their differences hardly bear mentioning. The same goes for democracy and monarchy. Yet scholars continue to claim that religious rivals such as Hinduism and Islam, Judaism and Christianity are, by some miracle of the imagination, both essentially the same and basically good.
This view resounds in the echo chamber of popular culture, not least on the “Oprah Winfrey Show” and in Elizabeth Gilbert’s bestseller, “Eat Pray Love,” where the world’s religions are described as rivers emptying into the ocean of God. Karen Armstrong, author of “A History of God,” has made a career out of emphasizing the commonalities of religion while eliding their differences. Even the Dalai Lama, who should know better, has gotten into the act, claiming that “all major religious traditions carry basically the same message....”
...This is a lovely sentiment but it is untrue, disrespectful, and dangerous.
See also this link on the blog of the Diocese of Bethlehem.