Religion scholar Stephen Prothero says what really needs saying more often. Excerpt:

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.

Why? Prothero says, in part:

The gods of Hinduism are not the same as the orishas of Yoruba religion or the immortals of Daoism. To pretend that they are is to refuse to take seriously the beliefs and practices of ordinary religious folk who for centuries have had no problem distinguishing the Nicene Creed of Christianity from the Four Noble Truths of Buddhism from the Shahadah of Islam. It is also to lose sight of the unique beauty of each of the world’s religions.
But this lumping of the world’s religions into one megareligion is not just false and condescending, it is also a threat. How can we make sense of the ongoing conflict in Kashmir if we pretend that Hinduism and Islam are one and the same? Or of the impasse in the Middle East, if we pretend that there are no fundamental disagreements between Judaism, Christianity, and Islam?

Prothero says he understands why people want to elide the rather profound differences among the world’s religions: because they think it will lead to a world of greater peace and harmony. But you can’t build peace on a therapeutic lie. He concludes:

What we need is a realistic view of where religious rivals clash and where they can cooperate. The world is what it is. And both tolerance and respect are empty virtues until we actually know whatever it is we are supposed to be tolerating or respecting.

Read the whole thing. I especially liked his idea that the one unifying truth all religions share is a view that something is not right in the world. But the diagnosis of how things went wrong, and how they’re to be put right again, is very, very different from religion to religion